diff --git a/pacotes/jsts/examples/buffer.html b/pacotes/jsts/examples/buffer.html new file mode 100644 index 0000000..1868fec --- /dev/null +++ b/pacotes/jsts/examples/buffer.html @@ -0,0 +1,45 @@ + + + Buffer example + + + + + + + + + + + Input geometry is buffered by 20 units (input is red result is blue). +
+ + diff --git a/pacotes/jsts/examples/debug.html b/pacotes/jsts/examples/debug.html new file mode 100644 index 0000000..5c24eb6 --- /dev/null +++ b/pacotes/jsts/examples/debug.html @@ -0,0 +1,200 @@ + + + Temp debug used for development purposes + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ + diff --git a/pacotes/jsts/examples/ol.html b/pacotes/jsts/examples/ol.html new file mode 100644 index 0000000..34d1aeb --- /dev/null +++ b/pacotes/jsts/examples/ol.html @@ -0,0 +1,152 @@ + + + + OpenLayers: Vector Features + + + + + + + + + + + + + + + + + + + + +

Drawing Simple Vector Features Example

+ +
+
+

+ Shows the use of the shows drawing simple vector features, in different styles. +

+
+
+

This example shows drawing simple vector features -- point, line, polygon + in different styles, created 'manually', by constructing the entire style + object, via 'copy', extending the default style object, and by + inheriting the default style from the layer.

+

It also shows how to use external graphic files for point features + and how to set their size: If either graphicWidth or graphicHeight is set, + the aspect ratio of the image will be respected. If both graphicWidth and + graphicHeight are set, it will be ignored. Alternatively, if graphicWidth + and graphicHeight are omitted, pointRadius will be used to set the size + of the image, which will then be twice the value of pointRadius with the + original aspect ratio.

+
+ + + + \ No newline at end of file diff --git a/pacotes/jsts/examples/overlay.html b/pacotes/jsts/examples/overlay.html new file mode 100644 index 0000000..253ea2d --- /dev/null +++ b/pacotes/jsts/examples/overlay.html @@ -0,0 +1,51 @@ + + + Overlay example + + + + + + + + + + + Input polygons (blue and red) have union outlined by green and intersection outlined by yellow. +
+ + diff --git a/pacotes/jsts/examples/style.css b/pacotes/jsts/examples/style.css new file mode 100644 index 0000000..d1da62e --- /dev/null +++ b/pacotes/jsts/examples/style.css @@ -0,0 +1,86 @@ +/** + * CSS Reset + * From Blueprint reset.css + * http://blueprintcss.googlecode.com + */ +html, body, div, span, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, code, del, dfn, em, img, q, dl, dt, dd, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td {margin:0;padding:0;border:0;font-weight:inherit;font-style:inherit;font-size:100%;font-family:inherit;vertical-align:baseline;} +body {line-height:1.5;} +table {border-collapse:separate;border-spacing:0;} +caption, th, td {text-align:left;font-weight:normal;} +table, td, th {vertical-align:middle;} +blockquote:before, blockquote:after, q:before, q:after {content:"";} +blockquote, q {quotes:"" "";} +a img {border:none;} + +/** + * Basic Typography + */ +body { + font-family: "Lucida Grande", Verdana, Geneva, Lucida, Arial, Helvetica, sans-serif; + font-size: 80%; + color: #222; + background: #fff; + margin: 1em 1.5em; +} +pre, code { + margin: 1.5em 0; + white-space: pre; +} +pre, code { + font: 1em 'andale mono', 'lucida console', monospace; + line-height:1.5; +} +a[href] { + color: #436976; + background-color: transparent; +} +h1, h2, h3, h4, h5, h6 { + color: #003a6b; + background-color: transparent; + font: 100% 'Lucida Grande', Verdana, Geneva, Lucida, Arial, Helvetica, sans-serif; + margin: 0; + padding-top: 0.5em; +} +h1 { + font-size: 130%; + margin-bottom: 0.5em; + border-bottom: 1px solid #fcb100; +} +h2 { + font-size: 120%; + margin-bottom: 0.5em; + border-bottom: 1px solid #aaa; +} +h3 { + font-size: 110%; + margin-bottom: 0.5em; + text-decoration: underline; +} +h4 { + font-size: 100%; + font-weight: bold; +} +h5 { + font-size: 100%; + font-weight: bold; +} +h6 { + font-size: 80%; + font-weight: bold; +} + +/** + * Map Examples Specific + */ +.smallmap { + width: 512px; + height: 256px; + border: 1px solid #ccc; +} +#tags { + display: none; +} + +#docs p { + margin-bottom: 0.5em; +} diff --git a/pacotes/jsts/examples/triangulation.html b/pacotes/jsts/examples/triangulation.html new file mode 100644 index 0000000..4acee8c --- /dev/null +++ b/pacotes/jsts/examples/triangulation.html @@ -0,0 +1,55 @@ + + + Triangulation example + + + + + + + + + + +En example of delaunay-triangulation (red) and voronoi diagram generation (green) using 20 random points.
+Reloading the page results in a new set of points. +
+ + diff --git a/pacotes/jsts/lib/javascript.util.js b/pacotes/jsts/lib/javascript.util.js new file mode 100644 index 0000000..12593e8 --- /dev/null +++ b/pacotes/jsts/lib/javascript.util.js @@ -0,0 +1,40 @@ +/* + javascript.util is a port of selected parts of java.util to JavaScript which + main purpose is to ease porting Java code to JavaScript. + + Copyright (C) 2011 by Björn Harrtell + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. +*/ +(function() {var c=null;function d(){return function(){}}function f(a,b){var e=a.split("."),h=window;!(e[0]in h)&&h.execScript&&h.execScript("var "+e[0]);for(var q;e.length&&(q=e.shift());)!e.length&&b!==void 0?h[q]=b:h=h[q]?h[q]:h[q]={}}f("javascript.util.version","0.7.0");function g(a){this.message=a||""}f("javascript.util.OperationNotSupported",g);g.prototype=Error();g.prototype.name="OperationNotSupported";g.prototype.name=g.prototype.name;function i(a){this.message=a||""} +f("javascript.util.IndexOutOfBoundsException",i);i.prototype=Error();i.prototype.name="IndexOutOfBoundsException";i.prototype.name=i.prototype.name;function j(a){this.message=a||""}f("javascript.util.NoSuchElementException",j);j.prototype=Error();j.prototype.name="NoSuchElementException";j.prototype.name=j.prototype.name;function k(a){this.message=a||""}f("javascript.util.EmptyStackException",k);k.prototype=Error();k.prototype.name="EmptyStackException";k.prototype.name=k.prototype.name; +function l(){}f("javascript.util.Iterator",l);l.prototype.d=d();l.prototype.hasNext=l.prototype.d;l.prototype.next=d();l.prototype.next=l.prototype.next;l.prototype.remove=d();l.prototype.remove=l.prototype.remove;function m(){}f("javascript.util.Collection",m);m.prototype.add=d();m.prototype.add=m.prototype.add;m.prototype.f=d();m.prototype.isEmpty=m.prototype.f;m.prototype.e=d();m.prototype.iterator=m.prototype.e;m.prototype.size=d();m.prototype.size=m.prototype.size;m.prototype.b=d(); +m.prototype.toArray=m.prototype.b;function n(){}f("javascript.util.List",n);n.prototype=new m;n.prototype.get=d();n.prototype.get=n.prototype.get;n.prototype.g=d();n.prototype.addAll=n.prototype.g;function o(a){this.a=[];a instanceof m&&this.g(a)}f("javascript.util.ArrayList",o);o.prototype=new n;o.prototype.a=c;o.prototype.add=function(a){this.a.push(a);return!0};o.prototype.add=o.prototype.add;o.prototype.g=function(a){for(a=a.e();a.d();)this.add(a.next());return!0};o.prototype.addAll=o.prototype.g; +o.prototype.e=function(){return new p(this)};o.prototype.iterator=o.prototype.e;o.prototype.get=function(a){if(a<0||a>=this.size())throw new i;return this.a[a]};o.prototype.get=o.prototype.get;o.prototype.f=function(){return this.a.length===0};o.prototype.isEmpty=o.prototype.f;o.prototype.size=function(){return this.a.length};o.prototype.size=o.prototype.size;o.prototype.b=function(){for(var a=[],b=0;bhiPt.y){hiPt=p;hiIndex=i;}} +iPrev=hiIndex;do{iPrev=iPrev-1;if(iPrev<0){iPrev=nPts;}}while(ring[iPrev].equals2D(hiPt)&&iPrev!==hiIndex);iNext=hiIndex;do{iNext=(iNext+1)%nPts;}while(ring[iNext].equals2D(hiPt)&&iNext!==hiIndex);prev=ring[iPrev];next=ring[iNext];if(prev.equals2D(hiPt)||next.equals2D(hiPt)||prev.equals2D(next)){return false;} +disc=jsts.algorithm.CGAlgorithms.computeOrientation(prev,hiPt,next);isCCW=false;if(disc===0){isCCW=(prev.x>next.x);} +else{isCCW=(disc>0);} +return isCCW;};jsts.algorithm.CGAlgorithms.computeOrientation=function(p1,p2,q){return jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q);};jsts.algorithm.CGAlgorithms.distancePointLine=function(p,A,B){if(!(A instanceof jsts.geom.Coordinate)){jsts.algorithm.CGAlgorithms.distancePointLine2.apply(this,arguments);} +if(A.x===B.x&&A.y===B.y){return p.distance(A);} +var r,s;r=((p.x-A.x)*(B.x-A.x)+(p.y-A.y)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));if(r<=0.0){return p.distance(A);} +if(r>=1.0){return p.distance(B);} +s=((A.y-p.y)*(B.x-A.x)-(A.x-p.x)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));return Math.abs(s)*Math.sqrt(((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y)));};jsts.algorithm.CGAlgorithms.distancePointLinePerpendicular=function(p,A,B){var s=((A.y-p.y)*(B.x-A.x)-(A.x-p.x)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));return Math.abs(s)*Math.sqrt(((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y)));};jsts.algorithm.CGAlgorithms.distancePointLine2=function(p,line){var minDistance,i,il,dist;if(line.length===0){throw new jsts.error.IllegalArgumentError('Line array must contain at least one vertex');} +minDistance=p.distance(line[0]);for(i=0,il=line.length-1;i1)||(s<0)||(s>1)){return Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(A,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(B,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(C,A,B),jsts.algorithm.CGAlgorithms.distancePointLine(D,A,B))));} +return 0.0;};jsts.algorithm.CGAlgorithms.signedArea=function(ring){if(ring.length<3){return 0.0;} +var sum,i,il,bx,by,cx,cy;sum=0.0;for(i=0,il=ring.length-1;i0;};jsts.algorithm.Angle.isObtuse=function(p0,p1,p2){var dx0,dy0,dx1,dy1,dotprod;dx0=p0.x-p1.x;dy0=p0.y-p1.y;dx1=p2.x-p1.x;dy1=p2.y-p1.y;dotprod=dx0*dx1+dy0*dy1;return dotprod<0;};jsts.algorithm.Angle.angleBetween=function(tip1,tail,tip2){var a1,a2;a1=jsts.algorithm.Angle.angle(tail,tip1);a2=jsts.algorithm.Angle.angle(tail,tip2);return jsts.algorithm.Angle.diff(a1,a2);};jsts.algorithm.Angle.angleBetweenOriented=function(tip1,tail,tip2){var a1,a2,angDel;a1=jsts.algorithm.Angle.angle(tail,tip1);a2=jsts.algorithm.Angle.angle(tail,tip2);angDel=a2-a1;if(angDel<=-Math.PI){return angDel+jsts.algorithm.Angle.PI_TIMES_2;} +if(angDel>Math.PI){return angDel-jsts.algorithm.Angle.PI_TIMES_2;} +return angDel;};jsts.algorithm.Angle.interiorAngle=function(p0,p1,p2){var anglePrev,angleNext;anglePrev=jsts.algorithm.Angle.angle(p1,p0);angleNext=jsts.algorithm.Angle.angle(p1,p2);return Math.abs(angleNext-anglePrev);};jsts.algorithm.Angle.getTurn=function(ang1,ang2){var crossproduct=Math.sin(ang2-ang1);if(crossproduct>0){return jsts.algorithm.Angle.COUNTERCLOCKWISE;} +if(crossproduct<0){return jsts.algorithm.Angle.CLOCKWISE;} +return jsts.algorithm.Angle.NONE;};jsts.algorithm.Angle.normalize=function(angle){while(angle>Math.PI){angle-=jsts.algorithm.Angle.PI_TIMES_2;} +while(angle<=-Math.PI){angle+=jsts.algorithm.Angle.PI_TIMES_2;} +return angle;};jsts.algorithm.Angle.normalizePositive=function(angle){if(angle<0.0){while(angle<0.0){angle+=jsts.algorithm.Angle.PI_TIMES_2;} +if(angle>=jsts.algorithm.Angle.PI_TIMES_2){angle=0.0;}} +else{while(angle>=jsts.algorithm.Angle.PI_TIMES_2){angle-=jsts.algorithm.Angle.PI_TIMES_2;} +if(angle<0.0){angle=0.0;}} +return angle;};jsts.algorithm.Angle.diff=function(ang1,ang2){var delAngle;if(ang1Math.PI){delAngle=(2*Math.PI)-delAngle;} +return delAngle;};jsts.geom.GeometryComponentFilter=function(){};jsts.geom.GeometryComponentFilter.prototype.filter=function(geom){throw new jsts.error.AbstractMethodInvocationError();};jsts.geom.util.LinearComponentExtracter=function(lines,isForcedToLineString){this.lines=lines;this.isForcedToLineString=isForcedToLineString;};jsts.geom.util.LinearComponentExtracter.prototype=new jsts.geom.GeometryComponentFilter();jsts.geom.util.LinearComponentExtracter.prototype.lines=null;jsts.geom.util.LinearComponentExtracter.prototype.isForcedToLineString=false;jsts.geom.util.LinearComponentExtracter.getLines=function(geoms,lines){if(arguments.length==1){return jsts.geom.util.LinearComponentExtracter.getLines5.apply(this,arguments);} +else if(arguments.length==2&&typeof lines==='boolean'){return jsts.geom.util.LinearComponentExtracter.getLines6.apply(this,arguments);} +else if(arguments.length==2&&geoms instanceof jsts.geom.Geometry){return jsts.geom.util.LinearComponentExtracter.getLines3.apply(this,arguments);} +else if(arguments.length==3&&geoms instanceof jsts.geom.Geometry){return jsts.geom.util.LinearComponentExtracter.getLines4.apply(this,arguments);} +else if(arguments.length==3){return jsts.geom.util.LinearComponentExtracter.getLines2.apply(this,arguments);} +for(var i=0;idistance){return false;} +return DistanceOp.isWithinDistance(this,geom,distance);};jsts.geom.Geometry.prototype.getCentroid_jsts=function(){if(this.isEmpty()){return null;} +var cent;var centPt=null;var dim=this.getDimension();if(dim===0){cent=new jsts.algorithm.CentroidPoint();cent.add(this);centPt=cent.getCentroid();}else if(dim===1){cent=new jsts.algorithm.CentroidLine();cent.add(this);centPt=cent.getCentroid();}else{cent=new jsts.algorithm.CentroidArea();cent.add(this);centPt=cent.getCentroid();} +return this.createPointFromInternalCoord(centPt,this);};jsts.geom.Geometry.prototype.getInteriorPoint=function(){var intPt;var interiorPt=null;var dim=getDimension();if(dim===0){intPt=new InteriorPointPoint(this);interiorPt=intPt.getInteriorPoint();}else if(dim===1){intPt=new InteriorPointLine(this);interiorPt=intPt.getInteriorPoint();}else{intPt=new InteriorPointArea(this);interiorPt=intPt.getInteriorPoint();} +return this.createPointFromInternalCoord(interiorPt,this);};jsts.geom.Geometry.prototype.getDimension=function(){throw new jsts.error.AbstractMethodInvocationError();};jsts.geom.Geometry.prototype.getBoundary=function(){throw new jsts.error.AbstractMethodInvocationError();};jsts.geom.Geometry.prototype.getBoundaryDimension=function(){throw new jsts.error.AbstractMethodInvocationError();};jsts.geom.Geometry.prototype.getEnvelope=function(){return this.getFactory().toGeometry(this.getEnvelopeInternal());};jsts.geom.Geometry.prototype.getEnvelopeInternal=function(){if(this.envelope===null){this.envelope=this.computeEnvelopeInternal();} +return this.envelope;};jsts.geom.Geometry.prototype.disjoint=function(g){return!this.intersects(g);};jsts.geom.Geometry.prototype.touches=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false;} +return this.relate(g).isTouches(this.getDimension(),g.getDimension());};jsts.geom.Geometry.prototype.intersects_jsts=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false;} +if(this.isRectangle()){return RectangleIntersects.intersects(this,g);} +if(g.isRectangle()){return RectangleIntersects.intersects(g,this);} +return this.relate(g).isIntersects();};jsts.geom.Geometry.prototype.crosses=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false;} +return this.relate(g).isCrosses(this.getDimension(),g.getDimension());};jsts.geom.Geometry.prototype.within=function(g){return g.contains(this);};jsts.geom.Geometry.prototype.contains=function(g){if(!this.getEnvelopeInternal().contains(g.getEnvelopeInternal())){return false;} +if(this.isRectangle()){return RectangleContains.contains(this,g);} +return this.relate(g).isContains();};jsts.geom.Geometry.prototype.overlaps=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false;} +return this.relate(g).isOverlaps(this.getDimension(),g.getDimension());};jsts.geom.Geometry.prototype.covers=function(g){if(!this.getEnvelopeInternal().covers(g.getEnvelopeInternal())){return false;} +if(this.isRectangle()){return true;} +return this.relate(g).isCovers();};jsts.geom.Geometry.prototype.coveredBy=function(g){return g.covers(this);};jsts.geom.Geometry.prototype.relate=function(g,intersectionPattern){if(arguments.length===1){return this.relate2.apply(this,arguments);} +return this.relate2(g).matches(intersectionPattern);};jsts.geom.Geometry.prototype.relate2=function(g){this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(g);return jsts.operation.relate.RelateOp.relate(this,g);};jsts.geom.Geometry.prototype.equalsTopo=function(g){if(!this.getEnvelopeInternal().equals(g.getEnvelopeInternal())){return false;} +return this.relate(g).isEquals(this.getDimension(),g.getDimension());};jsts.geom.Geometry.prototype.equals=function(o){if(o instanceof jsts.geom.Geometry||o instanceof jsts.geom.LinearRing||o instanceof jsts.geom.Polygon||o instanceof jsts.geom.GeometryCollection||o instanceof jsts.geom.MultiPoint||o instanceof jsts.geom.MultiLineString||o instanceof jsts.geom.MultiPolygon){return this.equalsExact(o);} +return false;};jsts.geom.Geometry.prototype.buffer=function(){var args=[this];for(var i=0;iother.x){return 1;} +if(this.yother.y){return 1;} +return 0;};jsts.geom.Coordinate.prototype.hashCode=function(){return''+this.x+this.y;};OpenLayers.Geometry.Point=function(x,y){OpenLayers.Geometry.prototype.initialize.apply(this,arguments);if(x===undefined||x===null){this.x=0;this.y=0;}else if(typeof x==='number'||typeof x==='string'){this.x=parseFloat(x);this.y=parseFloat(y);}else if(x instanceof jsts.geom.Coordinate){y=x.y;x=x.x;this.x=parseFloat(x);this.y=parseFloat(y);}};OpenLayers.Geometry.Point=jsts.geom.Coordinate;})();jsts.geom.Envelope=function(){jsts.geom.Envelope.prototype.init.apply(this,arguments);};jsts.geom.Envelope.prototype.minx=null;jsts.geom.Envelope.prototype.maxx=null;jsts.geom.Envelope.prototype.miny=null;jsts.geom.Envelope.prototype.maxy=null;jsts.geom.Envelope.prototype.init=function(){if(typeof arguments[0]==='number'&&arguments.length===4){this.initFromValues(arguments[0],arguments[1],arguments[2],arguments[3]);}else if(arguments[0]instanceof jsts.geom.Coordinate&&arguments.length===1){this.initFromCoordinate(arguments[0]);}else if(arguments[0]instanceof jsts.geom.Coordinate&&arguments.length===2){this.initFromCoordinates(arguments[0],arguments[1]);}else if(arguments[0]instanceof jsts.geom.Envelope&&arguments.length===1){this.initFromEnvelope(arguments[0]);}};jsts.geom.Envelope.prototype.initFromValues=function(x1,x2,y1,y2){if(x1this.maxx){this.maxx=x;} +if(ythis.maxy){this.maxy=y;}}};jsts.geom.Envelope.prototype.expandToIncludeEnvelope=function(other){if(other.isNull()){return;} +if(this.isNull()){this.minx=other.getMinX();this.maxx=other.getMaxX();this.miny=other.getMinY();this.maxy=other.getMaxY();}else{if(other.minxthis.maxx){this.maxx=other.maxx;} +if(other.minythis.maxy){this.maxy=other.maxy;}}};jsts.geom.Envelope.prototype.expandBy=function(){if(arguments.length===1){this.expandByDistance(arguments[0]);}else{this.expandByDistances(arguments[0],arguments[1]);}};jsts.geom.Envelope.prototype.expandByDistance=function(distance){this.expandByDistances(distance,distance);};jsts.geom.Envelope.prototype.expandByDistances=function(deltaX,deltaY){if(this.isNull()){return;} +this.minx-=deltaX;this.maxx+=deltaX;this.miny-=deltaY;this.maxy+=deltaY;if(this.minx>this.maxx||this.miny>this.maxy){this.setToNull();}};jsts.geom.Envelope.prototype.translate=function(transX,transY){if(this.isNull()){return;} +this.init(this.minx+transX,this.maxx+transX,this.miny+transY,this.maxy+transY);};jsts.geom.Envelope.prototype.centre=function(){if(this.isNull()){return null;} +return new jsts.geom.Coordinate((this.minx+this.maxx)/2.0,(this.miny+this.maxy)/2.0);};jsts.geom.Envelope.prototype.intersection=function(env){if(this.isNull()||env.isNull()||!this.intersects(env)){return new jsts.geom.Envelope();} +var intMinX=this.minx>env.minx?this.minx:env.minx;var intMinY=this.miny>env.miny?this.miny:env.miny;var intMaxX=this.maxxthis.maxx||other.maxxthis.maxy||other.maxythis.maxx||xthis.maxy||y=this.minx&&x<=this.maxx&&y>=this.miny&&y<=this.maxy;};jsts.geom.Envelope.prototype.coversCoordinate=function(p){return this.coversValues(p.x,p.y);};jsts.geom.Envelope.prototype.coversEnvelope=function(other){if(this.isNull()||other.isNull()){return false;} +return other.minx>=this.minx&&other.maxx<=this.maxx&&other.miny>=this.miny&&other.maxy<=this.maxy;};jsts.geom.Envelope.prototype.distance=function(env){if(this.intersects(env)){return 0;} +var dx=0.0;if(this.maxxenv.maxx){dx=this.minx-env.maxx;} +var dy=0.0;if(this.maxyenv.maxy){dy=this.miny-env.maxy;} +if(dx===0.0){return dy;} +if(dy===0.0){return dx;} +return Math.sqrt(dx*dx+dy*dy);};jsts.geom.Envelope.prototype.equals=function(other){if(this.isNull()){return other.isNull();} +return this.maxx===other.maxx&&this.maxy===other.maxy&&this.minx===other.minx&&this.miny===other.miny;};jsts.geom.Envelope.prototype.toString=function(){return'Env['+this.minx+' : '+this.maxx+', '+this.miny+' : '+ +this.maxy+']';};jsts.geom.Envelope.intersects=function(p1,p2,q){if(arguments.length===4){return jsts.geom.Envelope.intersectsEnvelope(arguments[0],arguments[1],arguments[2],arguments[3]);} +var xc1=p1.xp2.x?p1.x:p2.x;var yc1=p1.yp2.y?p1.y:p2.y;if(((q.x>=xc1)&&(q.x<=xc2))&&((q.y>=yc1)&&(q.y<=yc2))){return true;} +return false;};jsts.geom.Envelope.intersectsEnvelope=function(p1,p2,q1,q2){var minq=Math.min(q1.x,q2.x);var maxq=Math.max(q1.x,q2.x);var minp=Math.min(p1.x,p2.x);var maxp=Math.max(p1.x,p2.x);if(minp>maxq){return false;} +if(maxpmaxq){return false;} +if(maxp0&&this.minIndexthis.minCoord.y&&pNext.y>this.minCoord.y&&orientation===jsts.algorithm.CGAlgorithms.CLOCKWISE){usePrev=true;} +if(usePrev){this.minIndex=this.minIndex-1;}};jsts.operation.buffer.RightmostEdgeFinder.prototype.checkForRightmostCoordinate=function(de){var coord=de.getEdge().getCoordinates();for(var i=0;ithis.minCoord.x){this.minDe=de;this.minIndex=i;this.minCoord=coord[i];}}};jsts.operation.buffer.RightmostEdgeFinder.prototype.getRightmostSide=function(de,index){var side=this.getRightmostSideOfSegment(de,index);if(side<0) +side=this.getRightmostSideOfSegment(de,index-1);if(side<0){this.minCoord=null;this.checkForRightmostCoordinate(de);} +return side;};jsts.operation.buffer.RightmostEdgeFinder.prototype.getRightmostSideOfSegment=function(de,i){var e=de.getEdge();var coord=e.getCoordinates();if(i<0||i+1>=coord.length) +return-1;if(coord[i].y==coord[i+1].y) +return-1;var pos=jsts.geomgraph.Position.LEFT;if(coord[i].ysegmentIndex) +return 1;if(this.distdist) +return 1;return 0;};jsts.geomgraph.EdgeIntersection.prototype.isEndPoint=function(maxSegmentIndex){if(this.segmentIndex===0&&this.dist===0.0) +return true;if(this.segmentIndex===maxSegmentIndex) +return true;return false;};jsts.geomgraph.EdgeIntersection.prototype.toString=function(){return''+this.segmentIndex+this.dist;};(function(){var EdgeIntersection=jsts.geomgraph.EdgeIntersection;var TreeMap=javascript.util.TreeMap;jsts.geomgraph.EdgeIntersectionList=function(edge){this.nodeMap=new TreeMap();this.edge=edge;};jsts.geomgraph.EdgeIntersectionList.prototype.nodeMap=null;jsts.geomgraph.EdgeIntersectionList.prototype.edge=null;jsts.geomgraph.EdgeIntersectionList.prototype.add=function(intPt,segmentIndex,dist){var eiNew=new EdgeIntersection(intPt,segmentIndex,dist);var ei=this.nodeMap.get(eiNew);if(ei!==null){return ei;} +this.nodeMap.put(eiNew,eiNew);return eiNew;};jsts.geomgraph.EdgeIntersectionList.prototype.iterator=function(){return this.nodeMap.values().iterator();};jsts.geomgraph.EdgeIntersectionList.prototype.addEndpoints=function(){var maxSegIndex=this.edge.pts.length-1;this.add(this.edge.pts[0],0,0.0);this.add(this.edge.pts[maxSegIndex],maxSegIndex,0.0);};jsts.geomgraph.EdgeIntersectionList.prototype.addSplitEdges=function(edgeList) +{this.addEndpoints();var it=this.iterator();var eiPrev=it.next();while(it.hasNext()){var ei=it.next();var newEdge=this.createSplitEdge(eiPrev,ei);edgeList.add(newEdge);eiPrev=ei;}};jsts.geomgraph.EdgeIntersectionList.prototype.createSplitEdge=function(ei0,ei1){var npts=ei1.segmentIndex-ei0.segmentIndex+2;var lastSegStartPt=this.edge.pts[ei1.segmentIndex];var useIntPt1=ei1.dist>0.0||!ei1.coord.equals2D(lastSegStartPt);if(!useIntPt1){npts--;} +var pts=[];var ipt=0;pts[ipt++]=new jsts.geom.Coordinate(ei0.coord);for(var i=ei0.segmentIndex+1;i<=ei1.segmentIndex;i++){pts[ipt++]=this.edge.pts[i];} +if(useIntPt1)pts[ipt]=ei1.coord;return new jsts.geomgraph.Edge(pts,new jsts.geomgraph.Label(this.edge.label));};})();jsts.geom.Location=function(){};jsts.geom.Location.INTERIOR=0;jsts.geom.Location.BOUNDARY=1;jsts.geom.Location.EXTERIOR=2;jsts.geom.Location.NONE=-1;jsts.geom.Location.toLocationSymbol=function(locationValue){switch(locationValue){case jsts.geom.Location.EXTERIOR:return'e';case jsts.geom.Location.BOUNDARY:return'b';case jsts.geom.Location.INTERIOR:return'i';case jsts.geom.Location.NONE:return'-';} +throw new jsts.IllegalArgumentError('Unknown location value: '+ +locationValue);};(function(){var AssertionFailedException=function(message){this.message=message;};AssertionFailedException.prototype=new Error();AssertionFailedException.prototype.name='AssertionFailedException';jsts.util.AssertionFailedException=AssertionFailedException;})();(function(){var AssertionFailedException=jsts.util.AssertionFailedException;jsts.util.Assert=function(){};jsts.util.Assert.isTrue=function(assertion,message){if(!assertion){if(message===null){throw new AssertionFailedException();}else{throw new AssertionFailedException(message);}}};jsts.util.Assert.equals=function(expectedValue,actualValue,message){if(!actualValue.equals(expectedValue)){throw new AssertionFailedException('Expected '+expectedValue+' but encountered '+actualValue+ +(message!=null?': '+message:''));}};jsts.util.Assert.shouldNeverReachHere=function(message){throw new AssertionFailedException('Should never reach here'+ +(message!=null?': '+message:''));};})();(function(){var Location=jsts.geom.Location;var Assert=jsts.util.Assert;var ArrayList=javascript.util.ArrayList;jsts.operation.relate.RelateComputer=function(arg){this.li=new jsts.algorithm.RobustLineIntersector();this.ptLocator=new jsts.algorithm.PointLocator();this.nodes=new jsts.geomgraph.NodeMap(new jsts.operation.relate.RelateNodeFactory());this.isolatedEdges=new ArrayList();this.arg=arg;};jsts.operation.relate.RelateComputer.prototype.li=null;jsts.operation.relate.RelateComputer.prototype.ptLocator=null;jsts.operation.relate.RelateComputer.prototype.arg=null;jsts.operation.relate.RelateComputer.prototype.nodes=null;jsts.operation.relate.RelateComputer.prototype.im=null;jsts.operation.relate.RelateComputer.prototype.isolatedEdges=null;jsts.operation.relate.RelateComputer.prototype.invalidPoint=null;jsts.operation.relate.RelateComputer.prototype.computeIM=function(){var im=new jsts.geom.IntersectionMatrix();im.set(Location.EXTERIOR,Location.EXTERIOR,2);if(!this.arg[0].getGeometry().getEnvelopeInternal().intersects(this.arg[1].getGeometry().getEnvelopeInternal())){this.computeDisjointIM(im);return im;} +this.arg[0].computeSelfNodes(this.li,false);this.arg[1].computeSelfNodes(this.li,false);var intersector=this.arg[0].computeEdgeIntersections(this.arg[1],this.li,false);this.computeIntersectionNodes(0);this.computeIntersectionNodes(1);this.copyNodesAndLabels(0);this.copyNodesAndLabels(1);this.labelIsolatedNodes();this.computeProperIntersectionIM(intersector,im);var eeBuilder=new jsts.operation.relate.EdgeEndBuilder();var ee0=eeBuilder.computeEdgeEnds(this.arg[0].getEdgeIterator());this.insertEdgeEnds(ee0);var ee1=eeBuilder.computeEdgeEnds(this.arg[1].getEdgeIterator());this.insertEdgeEnds(ee1);this.labelNodeEdges();this.labelIsolatedEdges(0,1);this.labelIsolatedEdges(1,0);this.updateIM(im);return im;};jsts.operation.relate.RelateComputer.prototype.insertEdgeEnds=function(ee){for(var i=ee.iterator();i.hasNext();){var e=i.next();this.nodes.add(e);}};jsts.operation.relate.RelateComputer.prototype.computeProperIntersectionIM=function(intersector,im){var dimA=this.arg[0].getGeometry().getDimension();var dimB=this.arg[1].getGeometry().getDimension();var hasProper=intersector.hasProperIntersection();var hasProperInterior=intersector.hasProperInteriorIntersection();if(dimA===2&&dimB===2){if(hasProper) +im.setAtLeast('212101212');} +else if(dimA===2&&dimB===1){if(hasProper) +im.setAtLeast('FFF0FFFF2');if(hasProperInterior) +im.setAtLeast('1FFFFF1FF');}else if(dimA===1&&dimB===2){if(hasProper) +im.setAtLeast('F0FFFFFF2');if(hasProperInterior) +im.setAtLeast('1F1FFFFFF');} +else if(dimA===1&&dimB===1){if(hasProperInterior) +im.setAtLeast('0FFFFFFFF');}};jsts.operation.relate.RelateComputer.prototype.copyNodesAndLabels=function(argIndex){for(var i=this.arg[argIndex].getNodeIterator();i.hasNext();){var graphNode=i.next();var newNode=this.nodes.addNode(graphNode.getCoordinate());newNode.setLabel(argIndex,graphNode.getLabel().getLocation(argIndex));}};jsts.operation.relate.RelateComputer.prototype.computeIntersectionNodes=function(argIndex){for(var i=this.arg[argIndex].getEdgeIterator();i.hasNext();){var e=i.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();var n=this.nodes.addNode(ei.coord);if(eLoc===Location.BOUNDARY) +n.setLabelBoundary(argIndex);else{if(n.getLabel().isNull(argIndex)) +n.setLabel(argIndex,Location.INTERIOR);}}}};jsts.operation.relate.RelateComputer.prototype.labelIntersectionNodes=function(argIndex){for(var i=this.arg[argIndex].getEdgeIterator();i.hasNext();){var e=i.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();var n=this.nodes.find(ei.coord);if(n.getLabel().isNull(argIndex)){if(eLoc===Location.BOUNDARY) +n.setLabelBoundary(argIndex);else +n.setLabel(argIndex,Location.INTERIOR);}}}};jsts.operation.relate.RelateComputer.prototype.computeDisjointIM=function(im){var ga=this.arg[0].getGeometry();if(!ga.isEmpty()){im.set(Location.INTERIOR,Location.EXTERIOR,ga.getDimension());im.set(Location.BOUNDARY,Location.EXTERIOR,ga.getBoundaryDimension());} +var gb=this.arg[1].getGeometry();if(!gb.isEmpty()){im.set(Location.EXTERIOR,Location.INTERIOR,gb.getDimension());im.set(Location.EXTERIOR,Location.BOUNDARY,gb.getBoundaryDimension());}};jsts.operation.relate.RelateComputer.prototype.labelNodeEdges=function(){for(var ni=this.nodes.iterator();ni.hasNext();){var node=ni.next();node.getEdges().computeLabelling(this.arg);}};jsts.operation.relate.RelateComputer.prototype.updateIM=function(im){for(var ei=this.isolatedEdges.iterator();ei.hasNext();){var e=ei.next();e.updateIM(im);} +for(var ni=this.nodes.iterator();ni.hasNext();){var node=ni.next();node.updateIM(im);node.updateIMFromEdges(im);}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedEdges=function(thisIndex,targetIndex){for(var ei=this.arg[thisIndex].getEdgeIterator();ei.hasNext();){var e=ei.next();if(e.isIsolated()){this.labelIsolatedEdge(e,targetIndex,this.arg[targetIndex].getGeometry());this.isolatedEdges.add(e);}}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedEdge=function(e,targetIndex,target){if(target.getDimension()>0){var loc=this.ptLocator.locate(e.getCoordinate(),target);e.getLabel().setAllLocations(targetIndex,loc);}else{e.getLabel().setAllLocations(targetIndex,Location.EXTERIOR);}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedNodes=function(){for(var ni=this.nodes.iterator();ni.hasNext();){var n=ni.next();var label=n.getLabel();Assert.isTrue(label.getGeometryCount()>0,'node with empty label found');if(n.isIsolated()){if(label.isNull(0)) +this.labelIsolatedNode(n,0);else +this.labelIsolatedNode(n,1);}}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedNode=function(n,targetIndex){var loc=this.ptLocator.locate(n.getCoordinate(),this.arg[targetIndex].getGeometry());n.getLabel().setAllLocations(targetIndex,loc);};})();(function(){var Assert=jsts.util.Assert;jsts.geomgraph.GraphComponent=function(label){this.label=label;};jsts.geomgraph.GraphComponent.prototype.label=null;jsts.geomgraph.GraphComponent.prototype._isInResult=false;jsts.geomgraph.GraphComponent.prototype._isCovered=false;jsts.geomgraph.GraphComponent.prototype._isCoveredSet=false;jsts.geomgraph.GraphComponent.prototype._isVisited=false;jsts.geomgraph.GraphComponent.prototype.getLabel=function(){return this.label;};jsts.geomgraph.GraphComponent.prototype.setLabel=function(label){if(arguments.length===2){this.setLabel2.apply(this,arguments);return;} +this.label=label;};jsts.geomgraph.GraphComponent.prototype.setInResult=function(isInResult){this._isInResult=isInResult;};jsts.geomgraph.GraphComponent.prototype.isInResult=function(){return this._isInResult;};jsts.geomgraph.GraphComponent.prototype.setCovered=function(isCovered){this._isCovered=isCovered;this._isCoveredSet=true;};jsts.geomgraph.GraphComponent.prototype.isCovered=function(){return this._isCovered;};jsts.geomgraph.GraphComponent.prototype.isCoveredSet=function(){return this._isCoveredSet;};jsts.geomgraph.GraphComponent.prototype.isVisited=function(){return this._isVisited;};jsts.geomgraph.GraphComponent.prototype.setVisited=function(isVisited){this._isVisited=isVisited;};jsts.geomgraph.GraphComponent.prototype.getCoordinate=function(){throw new jsts.error.AbstractMethodInvocationError();};jsts.geomgraph.GraphComponent.prototype.computeIM=function(im){throw new jsts.error.AbstractMethodInvocationError();};jsts.geomgraph.GraphComponent.prototype.isIsolated=function(){throw new jsts.error.AbstractMethodInvocationError();};jsts.geomgraph.GraphComponent.prototype.updateIM=function(im){Assert.isTrue(this.label.getGeometryCount()>=2,'found partial label');this.computeIM(im);};})();jsts.geomgraph.Node=function(coord,edges){this.coord=coord;this.edges=edges;this.label=new jsts.geomgraph.Label(0,jsts.geom.Location.NONE);};jsts.geomgraph.Node.prototype=new jsts.geomgraph.GraphComponent();jsts.geomgraph.Node.prototype.coord=null;jsts.geomgraph.Node.prototype.edges=null;jsts.geomgraph.Node.prototype.isIsolated=function(){return(this.label.getGeometryCount()==1);};jsts.geomgraph.Node.prototype.setLabel2=function(argIndex,onLocation){if(this.label===null){this.label=new jsts.geomgraph.Label(argIndex,onLocation);}else +this.label.setLocation(argIndex,onLocation);};jsts.geomgraph.Node.prototype.setLabelBoundary=function(argIndex){var loc=jsts.geom.Location.NONE;if(this.label!==null) +loc=this.label.getLocation(argIndex);var newLoc;switch(loc){case jsts.geom.Location.BOUNDARY:newLoc=jsts.geom.Location.INTERIOR;break;case jsts.geom.Location.INTERIOR:newLoc=jsts.geom.Location.BOUNDARY;break;default:newLoc=jsts.geom.Location.BOUNDARY;break;} +this.label.setLocation(argIndex,newLoc);};jsts.geomgraph.Node.prototype.add=function(e){this.edges.insert(e);e.setNode(this);};jsts.geomgraph.Node.prototype.getCoordinate=function(){return this.coord;};jsts.geomgraph.Node.prototype.getEdges=function(){return this.edges;};jsts.geomgraph.Node.prototype.isIncidentEdgeInResult=function(){for(var it=this.getEdges().getEdges().iterator();it.hasNext();){var de=it.next();if(de.getEdge().isInResult()) +return true;} +return false;};jsts.index.strtree.Interval=function(){var other;if(arguments.length===1){other=arguments[0];return jsts.index.strtree.Interval(other.min,other.max);}else if(arguments.length===2){jsts.util.Assert.isTrue(this.min<=this.max);this.min=arguments[0];this.max=arguments[1];}};jsts.index.strtree.Interval.prototype.min=null;jsts.index.strtree.Interval.prototype.max=null;jsts.index.strtree.Interval.prototype.getCentre=function(){return(this.min+this.max)/2;};jsts.index.strtree.Interval.prototype.expandToInclude=function(other){this.max=Math.max(this.max,other.max);this.min=Math.min(this.min,other.min);return this;};jsts.index.strtree.Interval.prototype.intersects=function(other){return!(other.min>this.max||other.max1;if(isCollection){if(geom0 instanceof jsts.geom.Polygon){return this.createMultiPolygon(geomList.toArray());} +else if(geom0 instanceof jsts.geom.LineString){return this.createMultiLineString(geomList.toArray());} +else if(geom0 instanceof jsts.geom.Point){return this.createMultiPoint(geomList.toArray());} +jsts.util.Assert.shouldNeverReachHere('Unhandled class: '+geom0);} +return geom0;};jsts.geom.GeometryFactory.prototype.createGeometryCollection=function(geometries){return new jsts.geom.GeometryCollection(geometries,this);};jsts.geom.GeometryFactory.prototype.toGeometry=function(envelope) +{if(envelope.isNull()){return this.createPoint(null);} +if(envelope.getMinX()===envelope.getMaxX()&&envelope.getMinY()===envelope.getMaxY()){return this.createPoint(new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()));} +if(envelope.getMinX()===envelope.getMaxX()||envelope.getMinY()===envelope.getMaxY()){return this.createLineString([new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMaxY())]);} +return this.createPolygon(this.createLinearRing([new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMaxY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMaxY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY())]),null);};jsts.index.quadtree.NodeBase=function(){this.subnode=new Array(4);this.subnode[0]=null;this.subnode[1]=null;this.subnode[2]=null;this.subnode[3]=null;this.items=[];};jsts.index.quadtree.NodeBase.prototype.getSubnodeIndex=function(env,centre){var subnodeIndex=-1;if(env.getMinX()>=centre.x){if(env.getMinY()>=centre.y){subnodeIndex=3;} +if(env.getMaxY()<=centre.y){subnodeIndex=1;}} +if(env.getMaxX()<=centre.x){if(env.getMinY()>=centre.y){subnodeIndex=2;} +if(env.getMaxY()<=centre.y){subnodeIndex=0;}} +return subnodeIndex;};jsts.index.quadtree.NodeBase.prototype.getItems=function(){return this.items;};jsts.index.quadtree.NodeBase.prototype.hasItems=function(){return(this.items.length>0);};jsts.index.quadtree.NodeBase.prototype.add=function(item){this.items.push(item);};jsts.index.quadtree.NodeBase.prototype.remove=function(itemEnv,item){if(!this.isSearchMatch(itemEnv)){return false;} +var found=false,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){found=this.subnode[i].remove(itemEnv,item);if(found){if(this.subnode[i].isPrunable()){this.subnode[i]=null;} +break;}}} +if(found){return found;} +if(OpenLayers.Util.indexOf(this.items,item)!==-1){OpenLayers.Util.removeItem(this.items,item);found=true;} +return found;};jsts.index.quadtree.NodeBase.prototype.isPrunable=function(){return!(this.hasChildren()||this.hasItems());};jsts.index.quadtree.NodeBase.prototype.hasChildren=function(){var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){return true;}} +return false;};jsts.index.quadtree.NodeBase.prototype.isEmpty=function(){var isEmpty=true;if(this.items.length>0){isEmpty=false;} +var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){if(!this.subnode[i].isEmpty()){isEmpty=false;}}} +return isEmpty;};jsts.index.quadtree.NodeBase.prototype.addAllItems=function(resultItems){resultItems=resultItems.concat(this.items);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){resultItems=this.subnode[i].addAllItems(resultItems);}} +return resultItems;};jsts.index.quadtree.NodeBase.prototype.addAllItemsFromOverlapping=function(searchEnv,resultItems){if(!this.isSearchMatch(searchEnv)){return;} +resultItems=resultItems.concat(this.items);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){resultItems=this.subnode[i].addAllItemsFromOverlapping(searchEnv,resultItems);}}};jsts.index.quadtree.NodeBase.prototype.visit=function(searchEnv,visitor){if(!this.isSearchMatch(searchEnv)){return;} +this.visitItems(searchEnv,visitor);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){this.subnode[i].visit(searchEnv,visitor);}}};jsts.index.quadtree.NodeBase.prototype.visitItems=function(env,visitor){var i=0,il=this.items.length;for(i;imaxSubDepth){maxSubDepth=sqd;}}} +return maxSubDepth+1;};jsts.index.quadtree.NodeBase.prototype.size=function(){var subSize=0,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].size();}} +return subSize+this.items.length;};jsts.index.quadtree.NodeBase.prototype.getNodeCount=function(){var subSize=0,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].size();}} +return subSize+1;};jsts.index.quadtree.Node=function(env,level){jsts.index.quadtree.NodeBase.prototype.constructor.apply(this,arguments);this.env=env;this.level=level;this.centre=new jsts.geom.Coordinate();this.centre.x=(env.getMinX()+env.getMaxX())/2;this.centre.y=(env.getMinY()+env.getMaxY())/2;};jsts.index.quadtree.Node.prototype=new jsts.index.quadtree.NodeBase();jsts.index.quadtree.Node.createNode=function(env){var key,node;key=new jsts.index.quadtree.Key(env);node=new jsts.index.quadtree.Node(key.getEnvelope(),key.getLevel());return node;};jsts.index.quadtree.Node.createExpanded=function(node,addEnv){var expandEnv=new jsts.geom.Envelope(addEnv),largerNode;if(node!==null){expandEnv.expandToInclude(node.env);} +largerNode=jsts.index.quadtree.Node.createNode(expandEnv);if(node!==null){largerNode.insertNode(node);} +return largerNode;};jsts.index.quadtree.Node.prototype.getEnvelope=function(){return this.env;};jsts.index.quadtree.Node.prototype.isSearchMatch=function(searchEnv){return this.env.intersects(searchEnv);};jsts.index.quadtree.Node.prototype.getNode=function(searchEnv){var subnodeIndex=this.getSubnodeIndex(searchEnv,this.centre),node;if(subnodeIndex!==-1){node=this.getSubnode(subnodeIndex);return node.getNode(searchEnv);}else{return this;}};jsts.index.quadtree.Node.prototype.find=function(searchEnv){var subnodeIndex=this.getSubnodeIndex(searchEnv,this.centre),node;if(subnodeIndex===-1){return this;} +if(this.subnode[subnodeIndex]!==null){node=this.subnode[subnodeIndex];return node.find(searchEnv);} +return this;};jsts.index.quadtree.Node.prototype.insertNode=function(node){var index=this.getSubnodeIndex(node.env,this.centre),childNode;if(node.level===this.level-1){this.subnode[index]=node;}else{childNode=this.createSubnode(index);childNode.insertNode(node);this.subnode[index]=childNode;}};jsts.index.quadtree.Node.prototype.getSubnode=function(index){if(this.subnode[index]===null){this.subnode[index]=this.createSubnode(index);} +return this.subnode[index];};jsts.index.quadtree.Node.prototype.createSubnode=function(index){var minx=0.0,maxx=0.0,miny=0.0,maxy=0.0,sqEnv,node;switch(index){case 0:minx=this.env.getMinX();maxx=this.centre.x;miny=this.env.getMinY();maxy=this.centre.y;break;case 1:minx=this.centre.x;maxx=this.env.getMaxX();miny=this.env.getMinY();maxy=this.centre.y;break;case 2:minx=this.env.getMinX();maxx=this.centre.x;miny=this.centre.y;maxy=this.env.getMaxY();break;case 3:minx=this.centre.x;maxx=this.env.getMaxX();miny=this.centre.y;maxy=this.env.getMaxY();break;} +sqEnv=new jsts.geom.Envelope(minx,maxx,miny,maxy);node=new jsts.index.quadtree.Node(sqEnv,this.level-1);return node;};(function(){jsts.geomgraph.Position=function(){};jsts.geomgraph.Position.ON=0;jsts.geomgraph.Position.LEFT=1;jsts.geomgraph.Position.RIGHT=2;jsts.geomgraph.Position.opposite=function(position){if(position===jsts.geomgraph.Position.LEFT){return jsts.geomgraph.Position.RIGHT;} +if(position===jsts.geomgraph.Position.RIGHT){return jsts.geomgraph.Position.LEFT;} +return position;};})();jsts.geomgraph.TopologyLocation=function(){this.location=[];if(arguments.length===3){var on=arguments[0];var left=arguments[1];var right=arguments[2];this.init(3);this.location[jsts.geomgraph.Position.ON]=on;this.location[jsts.geomgraph.Position.LEFT]=left;this.location[jsts.geomgraph.Position.RIGHT]=right;}else if(arguments[0]instanceof jsts.geomgraph.TopologyLocation){var gl=arguments[0];this.init(gl.location.length);if(gl!=null){for(var i=0;i1;};jsts.geomgraph.TopologyLocation.prototype.isLine=function(){return this.location.length===1;};jsts.geomgraph.TopologyLocation.prototype.flip=function(){if(this.location.length<=1) +return;var temp=this.location[jsts.geomgraph.Position.LEFT];this.location[jsts.geomgraph.Position.LEFT]=this.location[jsts.geomgraph.Position.RIGHT];this.location[jsts.geomgraph.Position.RIGHT]=temp;};jsts.geomgraph.TopologyLocation.prototype.setAllLocations=function(locValue){for(var i=0;ithis.location.length){var newLoc=[];newLoc[jsts.geomgraph.Position.ON]=this.location[jsts.geomgraph.Position.ON];newLoc[jsts.geomgraph.Position.LEFT]=jsts.geom.Location.NONE;newLoc[jsts.geomgraph.Position.RIGHT]=jsts.geom.Location.NONE;this.location=newLoc;} +for(var i=0;ithis.maxNodeDegree) +this.maxNodeDegree=degree;de=this.getNext(de);}while(de!==this.startDe);this.maxNodeDegree*=2;};jsts.geomgraph.EdgeRing.prototype.setInResult=function(){var de=this.startDe;do{de.getEdge().setInResult(true);de=de.getNext();}while(de!=this.startDe);};jsts.geomgraph.EdgeRing.prototype.mergeLabel=function(deLabel){this.mergeLabel2(deLabel,0);this.mergeLabel2(deLabel,1);};jsts.geomgraph.EdgeRing.prototype.mergeLabel2=function(deLabel,geomIndex){var loc=deLabel.getLocation(geomIndex,jsts.geomgraph.Position.RIGHT);if(loc==jsts.geom.Location.NONE) +return;if(this.label.getLocation(geomIndex)===jsts.geom.Location.NONE){this.label.setLocation(geomIndex,loc);return;}};jsts.geomgraph.EdgeRing.prototype.addPoints=function(edge,isForward,isFirstEdge){var edgePts=edge.getCoordinates();if(isForward){var startIndex=1;if(isFirstEdge) +startIndex=0;for(var i=startIndex;i=0;i--){this.pts.push(edgePts[i]);}}};jsts.geomgraph.EdgeRing.prototype.containsPoint=function(p){var shell=this.getLinearRing();var env=shell.getEnvelopeInternal();if(!env.contains(p)) +return false;if(!jsts.algorithm.CGAlgorithms.isPointInRing(p,shell.getCoordinates())) +return false;for(var i=0;i0){this.components.reverse();} +return;}}};OpenLayers.Geometry.LineString=jsts.geom.LineString;})();(function(){jsts.geom.LinearRing=function(coordinates,factory){this.factory=factory;jsts.geom.LineString.apply(this,arguments);};jsts.geom.LinearRing.prototype=OpenLayers.Geometry.LinearRing.prototype;for(key in jsts.geom.LineString.prototype){jsts.geom.LinearRing.prototype[key]=jsts.geom.LinearRing.prototype[key]?jsts.geom.LinearRing.prototype[key]:jsts.geom.LineString.prototype[key];} +jsts.geom.LinearRing.prototype.getBoundaryDimension=function(){return jsts.geom.Dimension.FALSE;};jsts.geom.LinearRing.prototype.isSimple=function(){return true;};jsts.geom.LinearRing.prototype.getGeometryType=function(){return'LinearRing';};jsts.geom.LinearRing.MINIMUM_VALID_SIZE=4;OpenLayers.Geometry.LinearRing=jsts.geom.LinearRing;})();jsts.geomgraph.NodeFactory=function(){};jsts.geomgraph.NodeFactory.prototype.createNode=function(coord){return new jsts.geomgraph.Node(coord,null);};jsts.operation.overlay.OverlayNodeFactory=function(){};jsts.operation.overlay.OverlayNodeFactory.prototype=new jsts.geomgraph.NodeFactory();jsts.operation.overlay.OverlayNodeFactory.constructor=jsts.operation.overlay.OverlayNodeFactory;jsts.operation.overlay.OverlayNodeFactory.prototype.createNode=function(coord){return new jsts.geomgraph.Node(coord,new jsts.geomgraph.DirectedEdgeStar());};jsts.index.ItemVisitor=function(){};jsts.index.ItemVisitor.prototype.visitItem=function(){throw new jsts.error.AbstractMethodInvocationError();};jsts.simplify.LineSegmentIndex=function(){this.index=new jsts.index.quadtree.Quadtree();};jsts.simplify.LineSegmentIndex.prototype.index=null;jsts.simplify.LineSegmentIndex.prototype.add=function(line){if(line instanceof jsts.geom.LineSegment){this.add2(line);return;} +var segs=line.getSegments();for(var i=0;ix1) +return 1;return 0;};jsts.noding.SegmentPointComparator.compareValue=function(compareSign0,compareSign1){if(compareSign0<0) +return-1;if(compareSign0>0) +return 1;if(compareSign1<0) +return-1;if(compareSign1>0) +return 1;return 0;};jsts.operation.buffer.BufferOp=function(g,bufParams){this.argGeom=g;this.bufParams=bufParams?bufParams:new jsts.operation.buffer.BufferParameters();};jsts.operation.buffer.BufferOp.MAX_PRECISION_DIGITS=12;jsts.operation.buffer.BufferOp.precisionScaleFactor=function(g,distance,maxPrecisionDigits){var env=g.getEnvelopeInternal();var envSize=Math.max(env.getHeight(),env.getWidth());var expandByDistance=distance>0.0?distance:0.0;var bufEnvSize=envSize+2*expandByDistance;var bufEnvLog10=(Math.log(bufEnvSize)/Math.log(10)+1.0);var minUnitLog10=bufEnvLog10-maxPrecisionDigits;var scaleFactor=Math.pow(10.0,-minUnitLog10);return scaleFactor;};jsts.operation.buffer.BufferOp.bufferOp=function(g,distance){if(arguments.length>2){return jsts.operation.buffer.BufferOp.bufferOp2.apply(this,arguments);} +var gBuf=new jsts.operation.buffer.BufferOp(g);var geomBuf=gBuf.getResultGeometry(distance);return geomBuf;};jsts.operation.buffer.BufferOp.bufferOp2=function(g,distance,params){if(arguments.length>3){return jsts.operation.buffer.BufferOp.bufferOp3.apply(this,arguments);} +var bufOp=new jsts.operation.buffer.BufferOp(g,params);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf;};jsts.operation.buffer.BufferOp.bufferOp3=function(g,distance,quadrantSegments){if(arguments.length>4){return jsts.operation.buffer.BufferOp.bufferOp4.apply(this,arguments);} +var bufOp=new jsts.operation.buffer.BufferOp(g);bufOp.setQuadrantSegments(quadrantSegments);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf;};jsts.operation.buffer.BufferOp.bufferOp4=function(g,distance,quadrantSegments,endCapStyle){var bufOp=new jsts.operation.buffer.BufferOp(g);bufOp.setQuadrantSegments(quadrantSegments);bufOp.setEndCapStyle(endCapStyle);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf;};jsts.operation.buffer.BufferOp.prototype.argGeom=null;jsts.operation.buffer.BufferOp.prototype.distance=null;jsts.operation.buffer.BufferOp.prototype.bufParams=null;jsts.operation.buffer.BufferOp.prototype.resultGeometry=null;jsts.operation.buffer.BufferOp.prototype.setEndCapStyle=function(endCapStyle){this.bufParams.setEndCapStyle(endCapStyle);};jsts.operation.buffer.BufferOp.prototype.setQuadrantSegments=function(quadrantSegments){this.bufParams.setQuadrantSegments(quadrantSegments);};jsts.operation.buffer.BufferOp.prototype.getResultGeometry=function(dist){this.distance=dist;this.computeGeometry();return this.resultGeometry;};jsts.operation.buffer.BufferOp.prototype.computeGeometry=function(){this.bufferOriginalPrecision();if(this.resultGeometry!==null){return;} +var argPM=this.argGeom.getPrecisionModel();if(argPM.getType()===jsts.geom.PrecisionModel.FIXED){this.bufferFixedPrecision(argPM);}else{this.bufferReducedPrecision();}};jsts.operation.buffer.BufferOp.prototype.bufferReducedPrecision=function(){var precDigits;var saveException;for(precDigits=jsts.operation.buffer.BufferOp.MAX_PRECISION_DIGITS;precDigits>=0;precDigits--){try{this.bufferReducedPrecision2(precDigits);}catch(ex){saveException=ex;} +if(this.resultGeometry!==null){return;}} +throw saveException;};jsts.operation.buffer.BufferOp.prototype.bufferOriginalPrecision=function(){var bufBuilder=new jsts.operation.buffer.BufferBuilder(this.bufParams);this.resultGeometry=bufBuilder.buffer(this.argGeom,this.distance);};jsts.operation.buffer.BufferOp.prototype.bufferReducedPrecision2=function(precisionDigits){var sizeBasedScaleFactor=jsts.operation.buffer.BufferOp.precisionScaleFactor(this.argGeom,this.distance,precisionDigits);var fixedPM=new jsts.geom.PrecisionModel(sizeBasedScaleFactor);this.bufferFixedPrecision(fixedPM);};jsts.operation.buffer.BufferOp.prototype.bufferFixedPrecision=function(fixedPM){var noder=new jsts.noding.ScaledNoder(new jsts.noding.snapround.MCIndexSnapRounder(new jsts.geom.PrecisionModel(1.0)),fixedPM.getScale());var bufBuilder=new jsts.operation.buffer.BufferBuilder(bufParams);bufBuilder.setWorkingPrecisionModel(fixedPM);bufBuilder.setNoder(noder);this.resultGeometry=bufBuilder.buffer(this.argGeom,this.distance);};jsts.geomgraph.index.EdgeSetIntersector=function(){};jsts.geomgraph.index.EdgeSetIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){throw new jsts.error.AbstractMethodInvocationError();};jsts.geomgraph.index.EdgeSetIntersector.prototype.computeIntersections2=function(edges0,edges1,si){throw new jsts.error.AbstractMethodInvocationError();};jsts.geomgraph.index.SimpleMCSweepLineIntersector=function(){throw new jsts.error.NotImplementedError();};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype=new jsts.geomgraph.index.EdgeSetIntersector();jsts.algorithm.locate.SimplePointInAreaLocator=function(geom){this.geom=geom;};jsts.algorithm.locate.SimplePointInAreaLocator.locate=function(p,geom){if(geom.isEmpty()) +return jsts.geom.Location.EXTERIOR;if(jsts.algorithm.locate.SimplePointInAreaLocator.containsPoint(p,geom)) +return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR;};jsts.algorithm.locate.SimplePointInAreaLocator.containsPoint=function(p,geom){if(geom instanceof jsts.geom.Polygon){return jsts.algorithm.locate.SimplePointInAreaLocator.containsPointInPolygon(p,geom);}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){for(var i=0;i=0;i--){var nextOut=this.resultAreaEdgeList.get(i);var nextIn=nextOut.getSym();if(firstOut===null&&nextOut.getEdgeRing()===er) +firstOut=nextOut;switch(state){case this.SCANNING_FOR_INCOMING:if(nextIn.getEdgeRing()!=er) +continue;incoming=nextIn;state=this.LINKING_TO_OUTGOING;break;case this.LINKING_TO_OUTGOING:if(nextOut.getEdgeRing()!==er) +continue;incoming.setNextMin(nextOut);state=this.SCANNING_FOR_INCOMING;break;}} +if(state===this.LINKING_TO_OUTGOING){Assert.isTrue(firstOut!==null,'found null for first outgoing dirEdge');Assert.isTrue(firstOut.getEdgeRing()===er,'unable to link last incoming dirEdge');incoming.setNextMin(firstOut);}};jsts.geomgraph.DirectedEdgeStar.prototype.linkAllDirectedEdges=function(){this.getEdges();var prevOut=null;var firstIn=null;for(var i=this.edgeList.size()-1;i>=0;i--){var nextOut=this.edgeList.get(i);var nextIn=nextOut.getSym();if(firstIn===null) +firstIn=nextIn;if(prevOut!==null) +nextIn.setNext(prevOut);prevOut=nextOut;} +firstIn.setNext(prevOut);};jsts.geomgraph.DirectedEdgeStar.prototype.findCoveredLineEdges=function(){var startLoc=Location.NONE;for(var it=this.iterator();it.hasNext();){var nextOut=it.next();var nextIn=nextOut.getSym();if(!nextOut.isLineEdge()){if(nextOut.isInResult()){startLoc=Location.INTERIOR;break;} +if(nextIn.isInResult()){startLoc=Location.EXTERIOR;break;}}} +if(startLoc===Location.NONE) +return;var currLoc=startLoc;for(var it=this.iterator();it.hasNext();){var nextOut=it.next();var nextIn=nextOut.getSym();if(nextOut.isLineEdge()){nextOut.getEdge().setCovered(currLoc===Location.INTERIOR);}else{if(nextOut.isInResult()) +currLoc=Location.EXTERIOR;if(nextIn.isInResult()) +currLoc=Location.INTERIOR;}}};jsts.geomgraph.DirectedEdgeStar.prototype.computeDepths=function(de){if(arguments.length===2){this.computeDepths2.apply(this,arguments);return;} +var edgeIndex=this.findIndex(de);var label=de.getLabel();var startDepth=de.getDepth(Position.LEFT);var targetLastDepth=de.getDepth(Position.RIGHT);var nextDepth=this.computeDepths2(edgeIndex+1,this.edgeList.size(),startDepth);var lastDepth=this.computeDepths2(0,edgeIndex,nextDepth);if(lastDepth!=targetLastDepth) +throw new jsts.error.TopologyError('depth mismatch at '+ +de.getCoordinate());};jsts.geomgraph.DirectedEdgeStar.prototype.computeDepths2=function(startIndex,endIndex,startDepth){var currDepth=startDepth;for(var i=startIndex;i0||this.isIn) +return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR;};jsts.algorithm.PointLocator.prototype.computeLocation=function(p,geom){if(geom instanceof jsts.geom.Point||geom instanceof jsts.geom.LineString||geom instanceof jsts.geom.Polygon){this.updateLocationInfo(this.locate(p,geom));}else if(geom instanceof jsts.geom.MultiLineString){var ml=geom;for(var i=0;idy){dist=dx;}else{dist=dy;}}else{var pdx=Math.abs(p.x-p0.x);var pdy=Math.abs(p.y-p0.y);if(dx>dy){dist=pdx;}else{dist=pdy;} +if(dist===0.0&&!p.equals(p0)){dist=Math.max(pdx,pdy);}} +if(dist===0.0&&!p.equals(p0)){throw new jsts.error.IllegalArgumentError('Bad distance calculation');} +return dist;};jsts.algorithm.LineIntersector.nonRobustComputeEdgeDistance=function(p,p1,p2){var dx=p.x-p1.x;var dy=p.y-p1.y;var dist=Math.sqrt(dx*dx+dy*dy);if(!(dist===0.0&&!p.equals(p1))){throw new jsts.error.IllegalArgumentError('Invalid distance calculation');} +return dist;};jsts.algorithm.LineIntersector.prototype.result=null;jsts.algorithm.LineIntersector.prototype.inputLines=null;jsts.algorithm.LineIntersector.prototype.intPt=null;jsts.algorithm.LineIntersector.prototype.intLineIndex=null;jsts.algorithm.LineIntersector.prototype._isProper=null;jsts.algorithm.LineIntersector.prototype.pa=null;jsts.algorithm.LineIntersector.prototype.pb=null;jsts.algorithm.LineIntersector.prototype.precisionModel=null;jsts.algorithm.LineIntersector.prototype.computeIntersection=function(p,p1,p2){throw new jsts.error.AbstractMethodInvocationError();};jsts.algorithm.LineIntersector.prototype.isCollinear=function(){return this.result===jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION;};jsts.algorithm.LineIntersector.prototype.computeIntersection=function(p1,p2,p3,p4){this.inputLines[0][0]=p1;this.inputLines[0][1]=p2;this.inputLines[1][0]=p3;this.inputLines[1][1]=p4;this.result=this.computeIntersect(p1,p2,p3,p4);};jsts.algorithm.LineIntersector.prototype.computeIntersect=function(p1,p2,q1,q2){throw new jsts.error.AbstractMethodInvocationError();};jsts.algorithm.LineIntersector.prototype.isEndPoint=function(){return this.hasIntersection()&&!this._isProper;};jsts.algorithm.LineIntersector.prototype.hasIntersection=function(){return this.result!==jsts.algorithm.LineIntersector.NO_INTERSECTION;};jsts.algorithm.LineIntersector.prototype.getIntersectionNum=function(){return this.result;};jsts.algorithm.LineIntersector.prototype.getIntersection=function(intIndex){return this.intPt[intIndex];};jsts.algorithm.LineIntersector.prototype.computeIntLineIndex=function(){if(this.intLineIndex===null){this.intLineIndex=[[],[]];this.computeIntLineIndex(0);this.computeIntLineIndex(1);}};jsts.algorithm.LineIntersector.prototype.isIntersection=function(pt){var i;for(i=0;idist1){this.intLineIndex[segmentIndex][0]=0;this.intLineIndex[segmentIndex][1]=1;}else{this.intLineIndex[segmentIndex][0]=1;this.intLineIndex[segmentIndex][1]=0;}};jsts.algorithm.LineIntersector.prototype.getEdgeDistance=function(segmentIndex,intIndex){var dist=jsts.algorithm.LineIntersector.computeEdgeDistance(this.intPt[intIndex],this.inputLines[segmentIndex][0],this.inputLines[segmentIndex][1]);return dist;};jsts.algorithm.RobustLineIntersector=function(){jsts.algorithm.RobustLineIntersector.prototype.constructor.call(this);};jsts.algorithm.RobustLineIntersector.prototype=new jsts.algorithm.LineIntersector();jsts.algorithm.RobustLineIntersector.prototype.computeIntersection=function(p,p1,p2){if(arguments.length===4){jsts.algorithm.LineIntersector.prototype.computeIntersection.apply(this,arguments);return;} +this._isProper=false;if(jsts.geom.Envelope.intersects(p1,p2,p)){if((jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,p)===0)&&(jsts.algorithm.CGAlgorithms.orientationIndex(p2,p1,p)===0)){this._isProper=true;if(p.equals(p1)||p.equals(p2)){this._isProper=false;} +this.result=jsts.algorithm.LineIntersector.POINT_INTERSECTION;return;}} +this.result=jsts.algorithm.LineIntersector.NO_INTERSECTION;};jsts.algorithm.RobustLineIntersector.prototype.computeIntersect=function(p1,p2,q1,q2){this._isProper=false;if(!jsts.geom.Envelope.intersects(p1,p2,q1,q2)){return jsts.algorithm.LineIntersector.NO_INTERSECTION;} +var Pq1=jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q1);var Pq2=jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q2);if((Pq1>0&&Pq2>0)||(Pq1<0&&Pq2<0)){return jsts.algorithm.LineIntersector.NO_INTERSECTION;} +var Qp1=jsts.algorithm.CGAlgorithms.orientationIndex(q1,q2,p1);var Qp2=jsts.algorithm.CGAlgorithms.orientationIndex(q1,q2,p2);if((Qp1>0&&Qp2>0)||(Qp1<0&&Qp2<0)){return jsts.algorithm.LineIntersector.NO_INTERSECTION;} +var collinear=Pq1===0&&Pq2===0&&Qp1===0&&Qp2===0;if(collinear){return this.computeCollinearIntersection(p1,p2,q1,q2);} +if(Pq1===0||Pq2===0||Qp1===0||Qp2===0){this._isProper=false;if(p1.equals2D(q1)||p1.equals2D(q2)){this.intPt[0]=p1;}else if(p2.equals2D(q1)||p2.equals2D(q2)){this.intPt[0]=p2;} +else if(Pq1===0){this.intPt[0]=new jsts.geom.Coordinate(q1);}else if(Pq2===0){this.intPt[0]=new jsts.geom.Coordinate(q2);}else if(Qp1===0){this.intPt[0]=new jsts.geom.Coordinate(p1);}else if(Qp2===0){this.intPt[0]=new jsts.geom.Coordinate(p2);}}else{this._isProper=true;this.intPt[0]=this.intersection(p1,p2,q1,q2);} +return jsts.algorithm.LineIntersector.POINT_INTERSECTION;};jsts.algorithm.RobustLineIntersector.prototype.computeCollinearIntersection=function(p1,p2,q1,q2){var p1q1p2=jsts.geom.Envelope.intersects(p1,p2,q1);var p1q2p2=jsts.geom.Envelope.intersects(p1,p2,q2);var q1p1q2=jsts.geom.Envelope.intersects(q1,q2,p1);var q1p2q2=jsts.geom.Envelope.intersects(q1,q2,p2);if(p1q1p2&&p1q2p2){this.intPt[0]=q1;this.intPt[1]=q2;return jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION;} +if(q1p1q2&&q1p2q2){this.intPt[0]=p1;this.intPt[1]=p2;return jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION;} +if(p1q1p2&&q1p1q2){this.intPt[0]=q1;this.intPt[1]=p1;return q1.equals(p1)&&!p1q2p2&&!q1p2q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION;} +if(p1q1p2&&q1p2q2){this.intPt[0]=q1;this.intPt[1]=p2;return q1.equals(p2)&&!p1q2p2&&!q1p1q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION;} +if(p1q2p2&&q1p1q2){this.intPt[0]=q2;this.intPt[1]=p1;return q2.equals(p1)&&!p1q1p2&&!q1p2q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION;} +if(p1q2p2&&q1p2q2){this.intPt[0]=q2;this.intPt[1]=p2;return q2.equals(p2)&&!p1q1p2&&!q1p1q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION;} +return jsts.algorithm.LineIntersector.NO_INTERSECTION;};jsts.algorithm.RobustLineIntersector.prototype.intersection=function(p1,p2,q1,q2){var intPt=this.intersectionWithNormalization(p1,p2,q1,q2);if(!this.isInSegmentEnvelopes(intPt)){intPt=jsts.algorithm.CentralEndpointIntersector.getIntersection(p1,p2,q1,q2);} +if(this.precisionModel!==null){this.precisionModel.makePrecise(intPt);} +return intPt;};jsts.algorithm.RobustLineIntersector.prototype.intersectionWithNormalization=function(p1,p2,q1,q2){var n1=new jsts.geom.Coordinate(p1);var n2=new jsts.geom.Coordinate(p2);var n3=new jsts.geom.Coordinate(q1);var n4=new jsts.geom.Coordinate(q2);var normPt=new jsts.geom.Coordinate();this.normalizeToEnvCentre(n1,n2,n3,n4,normPt);var intPt=this.safeHCoordinateIntersection(n1,n2,n3,n4);intPt.x+=normPt.x;intPt.y+=normPt.y;return intPt;};jsts.algorithm.RobustLineIntersector.prototype.safeHCoordinateIntersection=function(p1,p2,q1,q2){var intPt=null;try{intPt=jsts.algorithm.HCoordinate.intersection(p1,p2,q1,q2);}catch(e){if(e instanceof jsts.error.NotRepresentableError){intPt=jsts.algorithm.CentralEndpointIntersector.getIntersection(p1,p2,q1,q2);}else{throw e;}} +return intPt;};jsts.algorithm.RobustLineIntersector.prototype.normalizeToMinimum=function(n1,n2,n3,n4,normPt){normPt.x=this.smallestInAbsValue(n1.x,n2.x,n3.x,n4.x);normPt.y=this.smallestInAbsValue(n1.y,n2.y,n3.y,n4.y);n1.x-=normPt.x;n1.y-=normPt.y;n2.x-=normPt.x;n2.y-=normPt.y;n3.x-=normPt.x;n3.y-=normPt.y;n4.x-=normPt.x;n4.y-=normPt.y;};jsts.algorithm.RobustLineIntersector.prototype.normalizeToEnvCentre=function(n00,n01,n10,n11,normPt){var minX0=n00.xn01.x?n00.x:n01.x;var maxY0=n00.y>n01.y?n00.y:n01.y;var minX1=n10.xn11.x?n10.x:n11.x;var maxY1=n10.y>n11.y?n10.y:n11.y;var intMinX=minX0>minX1?minX0:minX1;var intMaxX=maxX0minY1?minY0:minY1;var intMaxY=maxY0=segStr.size()-2) +return true;return false;};jsts.noding.InteriorIntersectionFinder.prototype.isDone=function(){if(this.findAllIntersections) +return false;return this.interiorIntersection!=null;};})();(function(){jsts.noding.Noder=function(){};jsts.noding.Noder.prototype.computeNodes=jsts.abstractFunc;jsts.noding.Noder.prototype.getNodedSubstrings=jsts.abstractFunc;})();(function(){var Noder=jsts.noding.Noder;jsts.noding.SinglePassNoder=function(){};jsts.noding.SinglePassNoder.prototype=new Noder();jsts.noding.SinglePassNoder.constructor=jsts.noding.SinglePassNoder;jsts.noding.SinglePassNoder.prototype.segInt=null;jsts.noding.SinglePassNoder.prototype.setSegmentIntersector=function(segInt){this.segInt=segInt;};})();jsts.index.SpatialIndex=function(){};jsts.index.SpatialIndex.prototype.insert=function(itemEnv,item){throw new jsts.error.AbstractMethodInvocationError();};jsts.index.SpatialIndex.prototype.query=function(searchEnv,visitor){throw new jsts.error.AbstractMethodInvocationError();};jsts.index.SpatialIndex.prototype.remove=function(itemEnv,item){throw new jsts.error.AbstractMethodInvocationError();};jsts.index.strtree.AbstractSTRtree=function(nodeCapacity){this.itemBoundables=[];jsts.util.Assert.isTrue(nodeCapacity>1,'Node capacity must be greater than 1');this.nodeCapacity=nodeCapacity;};jsts.index.strtree.AbstractSTRtree.IntersectsOp=function(){};jsts.index.strtree.AbstractSTRtree.IntersectsOp.prototype.intersects=function(aBounds,bBounds){throw new jsts.error.AbstractMethodInvocationError();};jsts.index.strtree.AbstractSTRtree.prototype.root=null;jsts.index.strtree.AbstractSTRtree.prototype.built=false;jsts.index.strtree.AbstractSTRtree.prototype.itemBoundables=null;jsts.index.strtree.AbstractSTRtree.prototype.nodeCapacity=null;jsts.index.strtree.AbstractSTRtree.prototype.build=function(){jsts.util.Assert.isTrue(!this.built);this.root=this.itemBoundables.length===0?this.createNode(0):this.createHigherLevels(this.itemBoundables,-1);this.built=true;};jsts.index.strtree.AbstractSTRtree.prototype.createNode=function(level){throw new jsts.error.AbstractMethodInvocationError();};jsts.index.strtree.AbstractSTRtree.prototype.createParentBoundables=function(childBoundables,newLevel){jsts.util.Assert.isTrue(!(childBoundables.length===0));var parentBoundables=[];parentBoundables.push(this.createNode(newLevel));var sortedChildBoundables=[];for(var i=0;ib?1:amaxChildDepth) +maxChildDepth=childDepth;}} +return maxChildDepth+1;};jsts.index.strtree.AbstractSTRtree.prototype.insert=function(bounds,item){jsts.util.Assert.isTrue(!this.built,'Cannot insert items into an STR packed R-tree after it has been built.');this.itemBoundables.push(new jsts.index.strtree.ItemBoundable(bounds,item));};jsts.index.strtree.AbstractSTRtree.prototype.query=function(searchBounds){if(arguments.length>1){this.query2.apply(this,arguments);} +if(!this.built){this.build();} +var matches=[];if(this.itemBoundables.length===0){jsts.util.Assert.isTrue(this.root.getBounds()===null);return matches;} +if(this.getIntersectsOp().intersects(this.root.getBounds(),searchBounds)){this.query3(searchBounds,this.root,matches);} +return matches;};jsts.index.strtree.AbstractSTRtree.prototype.query2=function(searchBounds,visitor){if(arguments.length>2){this.query3.apply(this,arguments);} +if(!this.built){this.build();} +if(this.itemBoundables.length===0){jsts.util.Assert.isTrue(this.root.getBounds()===null);} +if(this.getIntersectsOp().intersects(this.root.getBounds(),searchBounds)){this.query4(searchBounds,root,visitor);}};jsts.index.strtree.AbstractSTRtree.prototype.query3=function(searchBounds,node,matches){if(!(arguments[2]instanceof Array)){this.query4.apply(this,arguments);} +var childBoundables=node.getChildBoundables();for(var i=0;i1){this.boundablesAtLevel2.apply(this,arguments);return;} +var boundables=[];this.boundablesAtLevel2(level,this.root,boundables);return boundables;};jsts.index.strtree.AbstractSTRtree.prototype.boundablesAtLevel2=function(level,top,boundables){jsts.util.Assert.isTrue(level>-2);if(top.getLevel()===level){boundables.add(top);return;} +var childBoundables=node.getChildBoundables();for(var i=0;i0);var parentBoundables=[];for(var i=0;i=sliceCapacity) +break;var childBoundable=childBoundables[i];slices[j].push(childBoundable);boundablesAddedToSlice++;}} +return slices;};jsts.index.strtree.STRtree.DEFAULT_NODE_CAPACITY=10;jsts.index.strtree.STRtree.prototype.createNode=function(level){var abstractNode=new jsts.index.strtree.AbstractNode(level);abstractNode.computeBounds=function(){var bounds=null;var childBoundables=this.getChildBoundables();for(var i=0;i0.0){var bndPair=priQ.pop();var currentDistance=bndPair.getDistance();if(currentDistance>=distanceLowerBound) +break;if(bndPair.isLeaves()){distanceLowerBound=currentDistance;minPair=bndPair;}else{bndPair.expandToQueue(priQ,distanceLowerBound);}} +return[minPair.getBoundable(0).getItem(),minPair.getBoundable(1).getItem()];};jsts.noding.SegmentString=function(){};jsts.noding.SegmentString.prototype.getData=jsts.abstractFunc;jsts.noding.SegmentString.prototype.setData=jsts.abstractFunc;jsts.noding.SegmentString.prototype.size=jsts.abstractFunc;jsts.noding.SegmentString.prototype.getCoordinate=jsts.abstractFunc;jsts.noding.SegmentString.prototype.getCoordinates=jsts.abstractFunc;jsts.noding.SegmentString.prototype.isClosed=jsts.abstractFunc;jsts.noding.NodableSegmentString=function(){};jsts.noding.NodableSegmentString.prototype=new jsts.noding.SegmentString();jsts.noding.NodableSegmentString.prototype.addIntersection=jsts.abstractFunc;jsts.noding.NodedSegmentString=function(pts,data){this.nodeList=new jsts.noding.SegmentNodeList(this);this.pts=pts;this.data=data;};jsts.noding.NodedSegmentString.prototype=new jsts.noding.NodableSegmentString();jsts.noding.NodedSegmentString.constructor=jsts.noding.NodedSegmentString;jsts.noding.NodedSegmentString.getNodedSubstrings=function(segStrings){if(arguments.length===2){jsts.noding.NodedSegmentString.getNodedSubstrings2.apply(this,arguments);return;} +var resultEdgelist=new javascript.util.ArrayList();jsts.noding.NodedSegmentString.getNodedSubstrings2(segStrings,resultEdgelist);return resultEdgelist;};jsts.noding.NodedSegmentString.getNodedSubstrings2=function(segStrings,resultEdgelist){for(var i=segStrings.iterator();i.hasNext();){var ss=i.next();ss.getNodeList().addSplitEdges(resultEdgelist);}};jsts.noding.NodedSegmentString.prototype.nodeList=null;jsts.noding.NodedSegmentString.prototype.pts=null;jsts.noding.NodedSegmentString.prototype.data=null;jsts.noding.NodedSegmentString.prototype.getData=function(){return this.data;};jsts.noding.NodedSegmentString.prototype.setData=function(data){this.data=data;};jsts.noding.NodedSegmentString.prototype.getNodeList=function(){return this.nodeList;};jsts.noding.NodedSegmentString.prototype.size=function(){return this.pts.length;};jsts.noding.NodedSegmentString.prototype.getCoordinate=function(i){return this.pts[i];};jsts.noding.NodedSegmentString.prototype.getCoordinates=function(){return this.pts;};jsts.noding.NodedSegmentString.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1]);};jsts.noding.NodedSegmentString.prototype.getSegmentOctant=function(index){if(index===this.pts.length-1) +return-1;return this.safeOctant(this.getCoordinate(index),this.getCoordinate(index+1));};jsts.noding.NodedSegmentString.prototype.safeOctant=function(p0,p1){if(p0.equals2D(p1)) +return 0;return jsts.noding.Octant.octant(p0,p1);};jsts.noding.NodedSegmentString.prototype.addIntersections=function(li,segmentIndex,geomIndex){for(var i=0;i=pts.length-1){return pts.length-1;} +var chainQuad=jsts.geomgraph.Quadrant.quadrant(pts[safeStart],pts[safeStart+1]);var last=start+1;while(last0&&factor<1){return this.project(p);} +var dist0=this.p0.distance(p);var dist1=this.p1.distance(p);if(dist0queryChain.getId()){queryChain.computeOverlaps(testChain,overlapAction);this.nOverlaps++;} +if(this.segInt.isDone()) +return;}}};jsts.noding.MCIndexNoder.prototype.add=function(segStr){var segChains=MonotoneChainBuilder.getChains(segStr.getCoordinates(),segStr);for(var i=0;i=0) +this.setComputationPrecision(g0.getPrecisionModel());else +this.setComputationPrecision(g1.getPrecisionModel());this.arg[0]=new jsts.geomgraph.GeometryGraph(0,g0,boundaryNodeRule);this.arg[1]=new jsts.geomgraph.GeometryGraph(1,g1,boundaryNodeRule);};jsts.operation.GeometryGraphOperation.prototype.li=null;jsts.operation.GeometryGraphOperation.prototype.resultPrecisionModel=null;jsts.operation.GeometryGraphOperation.prototype.arg=null;jsts.operation.GeometryGraphOperation.prototype.getArgGeometry=function(i){return arg[i].getGeometry();};jsts.operation.GeometryGraphOperation.prototype.setComputationPrecision=function(pm){this.resultPrecisionModel=pm;this.li.setPrecisionModel(this.resultPrecisionModel);};jsts.operation.overlay.PolygonBuilder=function(geometryFactory){this.shellList=[];this.geometryFactory=geometryFactory;};jsts.operation.overlay.PolygonBuilder.prototype.geometryFactory=null;jsts.operation.overlay.PolygonBuilder.prototype.shellList=null;jsts.operation.overlay.PolygonBuilder.prototype.add=function(graph){if(arguments.length===2){this.add2.apply(this,arguments);return;} +this.add2(graph.getEdgeEnds(),graph.getNodes());};jsts.operation.overlay.PolygonBuilder.prototype.add2=function(dirEdges,nodes){jsts.geomgraph.PlanarGraph.linkResultDirectedEdges(nodes);var maxEdgeRings=this.buildMaximalEdgeRings(dirEdges);var freeHoleList=[];var edgeRings=this.buildMinimalEdgeRings(maxEdgeRings,this.shellList,freeHoleList);this.sortShellsAndHoles(edgeRings,this.shellList,freeHoleList);this.placeFreeHoles(this.shellList,freeHoleList);};jsts.operation.overlay.PolygonBuilder.prototype.getPolygons=function(){var resultPolyList=this.computePolygons(this.shellList);return resultPolyList;};jsts.operation.overlay.PolygonBuilder.prototype.buildMaximalEdgeRings=function(dirEdges){var maxEdgeRings=[];for(var it=dirEdges.iterator();it.hasNext();){var de=it.next();if(de.isInResult()&&de.getLabel().isArea()){if(de.getEdgeRing()==null){var er=new jsts.operation.overlay.MaximalEdgeRing(de,this.geometryFactory);maxEdgeRings.push(er);er.setInResult();}}} +return maxEdgeRings;};jsts.operation.overlay.PolygonBuilder.prototype.buildMinimalEdgeRings=function(maxEdgeRings,shellList,freeHoleList){var edgeRings=[];for(var i=0;i2){er.linkDirectedEdgesForMinimalEdgeRings();var minEdgeRings=er.buildMinimalRings();var shell=this.findShell(minEdgeRings);if(shell!==null){this.placePolygonHoles(shell,minEdgeRings);shellList.push(shell);}else{freeHoleList=freeHoleList.concat(minEdgeRings);}}else{edgeRings.push(er);}} +return edgeRings;};jsts.operation.overlay.PolygonBuilder.prototype.findShell=function(minEdgeRings){var shellCount=0;var shell=null;for(var i=0;i0){return this.pts[0];}else{return null;}} +return this.pts[i];};jsts.geomgraph.Edge.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1]);};jsts.geomgraph.Edge.prototype.setIsolated=function(isIsolated){this._isIsolated=isIsolated;};jsts.geomgraph.Edge.prototype.isIsolated=function(){return this._isIsolated;};jsts.geomgraph.Edge.prototype.addIntersections=function(li,segmentIndex,geomIndex){for(var i=0;i=0){if(dy>=0){if(adx>=ady) +return 0;else +return 1;} +else{if(adx>=ady) +return 7;else +return 6;}} +else{if(dy>=0){if(adx>=ady) +return 3;else +return 2;} +else{if(adx>=ady) +return 4;else +return 5;}}};jsts.noding.Octant.octant2=function(p0,p1){var dx=p1.x-p0.x;var dy=p1.y-p0.y;if(dx===0.0&&dy===0.0) +throw new jsts.error.IllegalArgumentError('Cannot compute the octant for two identical points '+p0);return jsts.noding.Octant.octant(dx,dy);};jsts.operation.union.UnionInteracting=function(g0,g1){this.g0=g0;this.g1=g1;this.geomFactory=g0.getFactory();this.interacts0=[];this.interacts1=[];};jsts.operation.union.UnionInteracting.union=function(g0,g1){var uue=new jsts.operation.union.UnionInteracting(g0,g1);return uue.union();};jsts.operation.union.UnionInteracting.prototype.geomFactory=null;jsts.operation.union.UnionInteracting.prototype.g0=null;jsts.operation.union.UnionInteracting.prototype.g1=null;jsts.operation.union.UnionInteracting.prototype.interacts0=null;jsts.operation.union.UnionInteracting.prototype.interacts1=null;jsts.operation.union.UnionInteracting.prototype.union=function(){this.computeInteracting();var int0=this.extractElements(this.g0,this.interacts0,true);var int1=this.extractElements(this.g1,this.interacts1,true);if(int0.isEmpty()||int1.isEmpty()){} +var union=in0.union(int1);var disjoint0=this.extractElements(this.g0,this.interacts0,false);var disjoint1=this.extractElements(this.g1,this.interacts1,false);var overallUnion=jsts.geom.util.GeometryCombiner.combine(union,disjoint0,disjoint1);return overallUnion;};jsts.operation.union.UnionInteracting.prototype.bufferUnion=function(g0,g1){var factory=g0.getFactory();var gColl=factory.createGeometryCollection([g0,g1]);var unionAll=gColl.buffer(0.0);return unionAll;};jsts.operation.union.UnionInteracting.prototype.computeInteracting=function(elem0){if(!elem0){for(var i=0,l=this.g0.getNumGeometries();i0;return isInCircle;};jsts.triangulate.quadedge.TrianglePredicate.isInCircleNormalized=function(a,b,c,p){var adx,ady,bdx,bdy,cdx,cdy,abdet,bcdet,cadet,alift,blift,clift,disc;adx=a.x-p.x;ady=a.y-p.y;bdx=b.x-p.x;bdy=b.y-p.y;cdx=c.x-p.x;cdy=c.y-p.y;abdet=adx*bdy-bdx*ady;bcdet=bdx*cdy-cdx*bdy;cadet=cdx*ady-adx*cdy;alift=adx*adx+ady*ady;blift=bdx*bdx+bdy*bdy;clift=cdx*cdx+cdy*cdy;disc=alift*bcdet+blift*cadet+clift*abdet;return disc>0;};jsts.triangulate.quadedge.TrianglePredicate.triArea=function(a,b,c){return(b.x-a.x)*(c.y-a.y)-(b.y-a.y)*(c.x-a.x);};jsts.triangulate.quadedge.TrianglePredicate.isInCircleRobust=function(a,b,c,p){return jsts.triangulate.quadedge.TrianglePredicate.isInCircleNormalized(a,b,c,p);};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDSlow=function(a,b,c,p){var px,py,ax,ay,bx,by,cx,cy,aTerm,bTerm,cTerm,pTerm,sum,isInCircle;px=jsts.math.DD.valueOf(p.x);py=jsts.math.DD.valueOf(p.y);ax=jsts.math.DD.valueOf(a.x);ay=jsts.math.DD.valueOf(a.y);bx=jsts.math.DD.valueOf(b.x);by=jsts.math.DD.valueOf(b.y);cx=jsts.math.DD.valueOf(c.x);cy=jsts.math.DD.valueOf(c.y);aTerm=(ax.multiply(ax).add(ay.multiply(ay))).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(bx,by,cx,cy,px,py));bTerm=(bx.multiply(bx).add(by.multiply(by))).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,cx,cy,px,py));cTerm=(cx.multiply(cx).add(cy.multiply(cy))).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,bx,by,px,py));pTerm=(px.multiply(px).add(py.multiply(py))).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,bx,by,cx,cy));sum=aTerm.subtract(bTerm).add(cTerm).subtract(pTerm);isInCircle=sum.doubleValue()>0;return isInCircle;};jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow=function(ax,ay,bx,by,cx,cy){return(bx.subtract(ax).multiply(cy.subtract(ay)).subtract(by.subtract(ay).multiply(cx.subtract(ax))));};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDFast=function(a,b,c,p){var aTerm,bTerm,cTerm,pTerm,sum,isInCircle;aTerm=(jsts.math.DD.sqr(a.x).selfAdd(jsts.math.DD.sqr(a.y))).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(b,c,p));bTerm=(jsts.math.DD.sqr(b.x).selfAdd(jsts.math.DD.sqr(b.y))).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,c,p));cTerm=(jsts.math.DD.sqr(c.x).selfAdd(jsts.math.DD.sqr(c.y))).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,b,p));pTerm=(jsts.math.DD.sqr(p.x).selfAdd(jsts.math.DD.sqr(p.y))).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,b,c));sum=aTerm.selfSubtract(bTerm).selfAdd(cTerm).selfSubtract(pTerm);isInCircle=sum.doubleValue()>0;return isInCircle;};jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast=function(a,b,c){var t1,t2;t1=jsts.math.DD.valueOf(b.x).selfSubtract(a.x).selfMultiply(jsts.math.DD.valueOf(c.y).selfSubtract(a.y));t2=jsts.math.DD.valueOf(b.y).selSubtract(a.y).selfMultiply(jsts.math.DD.valueOf(c.x).selfSubtract(a.x));return t1.selfSubtract(t2);};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDNormalized=function(a,b,c,p){var adx,ady,bdx,bdy,cdx,cdy,abdet,bcdet,cadet,alift,blift,clift,sum,isInCircle;adx=jsts.math.DD.valueOf(a.x).selfSubtract(p.x);ady=jsts.math.DD.valueOf(a.y).selfSubtract(p.y);bdx=jsts.math.DD.valueOf(b.x).selfSubtract(p.x);bdx=jsts.math.DD.valueOf(b.y).selfSubtract(p.y);cdx=jsts.math.DD.valueOf(c.x).selfSubtract(p.x);cdx=jsts.math.DD.valueOf(c.y).selfSubtract(p.y);abdet=adx.multiply(bdy).selfSubtract(bdx.multiply(ady));bcdet=bdx.multiply(cdy).selfSubtract(cdx.multiply(bdy));cadet=cdx.multiply(ady).selfSubtract(adx.multiply(cdy));alift=adx.multiply(adx).selfAdd(ady.multiply(ady));blift=bdx.multiply(bdx).selfAdd(bdy.multiply(bdy));clift=cdx.multiply(cdx).selfAdd(cdy.multiply(cdy));sum=alift.selfMultiply(bcdet).selfAdd(blift.selfMultiply(cadet)).selfAdd(clift.selfMultiply(abdet));isInCircle=sum.doubleValue()>0;return isInCircle;};jsts.triangulate.quadedge.TrianglePredicate.isInCircleCC=function(a,b,c,p){var cc,ccRadius,pRadiusDiff;cc=jsts.geom.Triangle.circumcentre(a,b,c);ccRadius=a.distance(cc);pRadiusDiff=p.distance(cc)-ccRadius;return pRadiusDiff<=0;};jsts.operation.union.PointGeometryUnion=function(pointGeom,otherGeom){this.pointGeom=pointGeom;this.otherGeom=otherGeom;this.geomFact=otherGeom.getFactory();};jsts.operation.union.PointGeometryUnion.union=function(pointGeom,otherGeom){var unioner=new jsts.operation.union.PointGeometryUnion(pointGeom,otherGeom);return unioner.union();};jsts.operation.union.PointGeometryUnion.prototype.pointGeom=null;jsts.operation.union.PointGeometryUnion.prototype.otherGeom=null;jsts.operation.union.PointGeometryUnion.prototype.geomFact=null;jsts.operation.union.PointGeometryUnion.prototype.union=function(){var locator=new jsts.algorithm.PointLocator();var exteriorCoords=[];for(var i=0,l=this.pointGeom.getNumGeometries();ienv.getMaxY()) +continue;this.findStabbedSegments2(stabbingRayLeftPt,bsg.getDirectedEdges(),stabbedSegments);} +return stabbedSegments;};jsts.operation.buffer.SubgraphDepthLocater.prototype.findStabbedSegments2=function(stabbingRayLeftPt,dirEdges,stabbedSegments){if(arguments[1]instanceof jsts.geomgraph.DirectedEdge){this.findStabbedSegments3(stabbingRayLeftPt,dirEdges,stabbedSegments);return;} +for(var i=dirEdges.iterator();i.hasNext();){var de=i.next();if(!de.isForward()) +continue;this.findStabbedSegments3(stabbingRayLeftPt,de,stabbedSegments);}};jsts.operation.buffer.SubgraphDepthLocater.prototype.findStabbedSegments3=function(stabbingRayLeftPt,dirEdge,stabbedSegments){var pts=dirEdge.getEdge().getCoordinates();for(var i=0;ithis.seg.p1.y) +this.seg.reverse();var maxx=Math.max(this.seg.p0.x,this.seg.p1.x);if(maxxthis.seg.p1.y) +continue;if(jsts.algorithm.CGAlgorithms.computeOrientation(this.seg.p0,this.seg.p1,stabbingRayLeftPt)===jsts.algorithm.CGAlgorithms.RIGHT) +continue;var depth=dirEdge.getDepth(jsts.geomgraph.Position.LEFT);if(!this.seg.p0.equals(pts[i])) +depth=dirEdge.getDepth(jsts.geomgraph.Position.RIGHT);var ds=new jsts.operation.buffer.SubgraphDepthLocater.DepthSegment(this.seg,depth);stabbedSegments.push(ds);}};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment=function(seg,depth){this.upwardSeg=new jsts.geom.LineSegment(seg);this.leftDepth=depth;};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.upwardSeg=null;jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.leftDepth=null;jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.compareTo=function(obj){var other=obj;var orientIndex=this.upwardSeg.orientationIndex(other.upwardSeg);if(orientIndex===0) +orientIndex=-1*other.upwardSeg.orientationIndex(upwardSeg);if(orientIndex!==0) +return orientIndex;return this.compareX(this.upwardSeg,other.upwardSeg);};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.compareX=function(seg0,seg1){var compare0=seg0.p0.compareTo(seg1.p0);if(compare0!==0) +return compare0;return seg0.p1.compareTo(seg1.p1);};jsts.operation.relate.EdgeEndBundleStar=function(){jsts.geomgraph.EdgeEndStar.apply(this,arguments);};jsts.operation.relate.EdgeEndBundleStar.prototype=new jsts.geomgraph.EdgeEndStar();jsts.operation.relate.EdgeEndBundleStar.prototype.insert=function(e){var eb=this.edgeMap.get(e);if(eb===null){eb=new jsts.operation.relate.EdgeEndBundle(e);this.insertEdgeEnd(e,eb);} +else{eb.insert(e);}};jsts.operation.relate.EdgeEndBundleStar.prototype.updateIM=function(im){for(var it=this.iterator();it.hasNext();){var esb=it.next();esb.updateIM(im);}};jsts.operation.IsSimpleOp=function(geom){this.geom=geom;};jsts.operation.IsSimpleOp.prototype.geom=null;jsts.operation.IsSimpleOp.prototype.isClosedEndpointsInInterior=true;jsts.operation.IsSimpleOp.prototype.nonSimpleLocation=null;jsts.operation.IsSimpleOp.prototype.IsSimpleOp=function(geom){this.geom=geom;};jsts.operation.IsSimpleOp.prototype.isSimple=function(){this.nonSimpleLocation=null;if(this.geom instanceof jsts.geom.LineString){return this.isSimpleLinearGeometry(this.geom);} +if(this.geom instanceof jsts.geom.MultiLineString){return this.isSimpleLinearGeometry(this.geom);} +if(this.geom instanceof jsts.geom.MultiPoint){return this.isSimpleMultiPoint(this.geom);} +return true;};jsts.operation.IsSimpleOp.prototype.isSimpleMultiPoint=function(mp){if(mp.isEmpty()) +return true;var points=[];for(var i=0;i=0;i--){this.addCoordinate(coord[i],allowRepeated);}} +return true;};jsts.geom.CoordinateList.prototype.addCoordinate=function(coord,allowRepeated){if(!allowRepeated){if(this.length>=1){var last=this[this.length-1];if(last.equals2D(coord)) +return;}} +this.push(coord);};jsts.geom.CoordinateList.prototype.closeRing=function(){if(this.length>0){this.addCoordinate(new jsts.geom.Coordinate(this[0]),false);}};jsts.geom.CoordinateList.prototype.toArray=function(){var i,il,arr;i=0,il=this.length,arr=new Array(il);for(i;i=8&&this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_ROUND){this.closingSegLengthFactor=jsts.operation.buffer.OffsetSegmentGenerator.MAX_CLOSING_SEG_LEN_FACTOR;} +this.init(distance);};jsts.operation.buffer.OffsetSegmentGenerator.OFFSET_SEGMENT_SEPARATION_FACTOR=1.0E-3;jsts.operation.buffer.OffsetSegmentGenerator.INSIDE_TURN_VERTEX_SNAP_DISTANCE_FACTOR=1.0E-3;jsts.operation.buffer.OffsetSegmentGenerator.CURVE_VERTEX_SNAP_DISTANCE_FACTOR=1.0E-6;jsts.operation.buffer.OffsetSegmentGenerator.MAX_CLOSING_SEG_LEN_FACTOR=80;jsts.operation.buffer.OffsetSegmentGenerator.prototype.maxCurveSegmentError=0.0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.filletAngleQuantum=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.closingSegLengthFactor=1;jsts.operation.buffer.OffsetSegmentGenerator.prototype.segList=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.distance=0.0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.precisionModel=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.bufParams=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.li=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s2=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.seg0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.seg1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.offset0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.offset1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.side=0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.hasNarrowConcaveAngle=false;jsts.operation.buffer.OffsetSegmentGenerator.prototype.hasNarrowConcaveAngle=function(){return this.hasNarrowConcaveAngle;};jsts.operation.buffer.OffsetSegmentGenerator.prototype.init=function(distance){this.distance=distance;this.maxCurveSegmentError=this.distance*(1-Math.cos(this.filletAngleQuantum/2.0));this.segList=new jsts.operation.buffer.OffsetSegmentString();this.segList.setPrecisionModel(this.precisionModel);this.segList.setMinimumVertexDistance(this.distance*jsts.operation.buffer.OffsetSegmentGenerator.CURVE_VERTEX_SNAP_DISTANCE_FACTOR);};jsts.operation.buffer.OffsetSegmentGenerator.prototype.initSideSegments=function(s1,s2,side){this.s1=s1;this.s2=s2;this.side=side;this.seg1.setCoordinates(this.s1,this.s2);this.computeOffsetSegment(this.seg1,this.side,this.distance,this.offset1);};jsts.operation.buffer.OffsetSegmentGenerator.prototype.getCoordinates=function(){return this.segList.getCoordinates();};jsts.operation.buffer.OffsetSegmentGenerator.prototype.closeRing=function(){this.segList.closeRing();};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addSegments=function(pt,isForward){this.segList.addPts(pt,isForward);};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFirstSegment=function(){this.segList.addPt(this.offset1.p0);};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLastSegment=function(){this.segList.addPt(this.offset1.p1);};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addNextSegment=function(p,addStartPoint){this.s0=this.s1;this.s1=this.s2;this.s2=p;this.seg0.setCoordinates(this.s0,this.s1);this.computeOffsetSegment(this.seg0,this.side,this.distance,this.offset0);this.seg1.setCoordinates(this.s1,this.s2);this.computeOffsetSegment(this.seg1,this.side,this.distance,this.offset1);if(this.s1.equals(this.s2)) +return;var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(this.s0,this.s1,this.s2);var outsideTurn=(orientation===jsts.algorithm.CGAlgorithms.CLOCKWISE&&this.side===jsts.geomgraph.Position.LEFT)||(orientation===jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE&&this.side===jsts.geomgraph.Position.RIGHT);if(orientation==0){this.addCollinear(addStartPoint);}else if(outsideTurn){this.addOutsideTurn(orientation,addStartPoint);}else{this.addInsideTurn(orientation,addStartPoint);}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addCollinear=function(addStartPoint){this.li.computeIntersection(this.s0,this.s1,this.s1,this.s2);var numInt=this.li.getIntersectionNum();if(numInt>=2){if(this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_BEVEL||this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_MITRE){if(addStartPoint) +this.segList.addPt(this.offset0.p1);this.segList.addPt(this.offset1.p0);}else{this.addFillet(this.s1,this.offset0.p1,this.offset1.p0,jsts.algorithm.CGAlgorithms.CLOCKWISE,this.distance);}}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addOutsideTurn=function(orientation,addStartPoint){if(this.offset0.p1.distance(this.offset1.p0)0){var mid0=new jsts.geom.Coordinate((this.closingSegLengthFactor*this.offset0.p1.x+this.s1.x)/(this.closingSegLengthFactor+1),(this.closingSegLengthFactor*this.offset0.p1.y+this.s1.y)/(this.closingSegLengthFactor+1));this.segList.addPt(mid0);var mid1=new jsts.geom.Coordinate((this.losingSegLengthFactor*this.offset1.p0.x+this.s1.x)/(this.closingSegLengthFactor+1),(this.closingSegLengthFactor*this.offset1.p0.y+this.s1.y)/(this.closingSegLengthFactor+1));this.segList.addPt(mid1);}else{this.segList.addPt(this.s1);} +this.segList.addPt(this.offset1.p0);}}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.computeOffsetSegment=function(seg,side,distance,offset){var sideSign=side===jsts.geomgraph.Position.LEFT?1:-1;var dx=seg.p1.x-seg.p0.x;var dy=seg.p1.y-seg.p0.y;var len=Math.sqrt(dx*dx+dy*dy);var ux=sideSign*distance*dx/len;var uy=sideSign*distance*dy/len;offset.p0.x=seg.p0.x-uy;offset.p0.y=seg.p0.y+ux;offset.p1.x=seg.p1.x-uy;offset.p1.y=seg.p1.y+ux;};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLineEndCap=function(p0,p1){var seg=new jsts.geom.LineSegment(p0,p1);var offsetL=new jsts.geom.LineSegment();this.computeOffsetSegment(seg,jsts.geomgraph.Position.LEFT,this.distance,offsetL);var offsetR=new jsts.geom.LineSegment();this.computeOffsetSegment(seg,jsts.geomgraph.Position.RIGHT,this.distance,offsetR);var dx=p1.x-p0.x;var dy=p1.y-p0.y;var angle=Math.atan2(dy,dx);switch(this.bufParams.getEndCapStyle()){case jsts.operation.buffer.BufferParameters.CAP_ROUND:this.segList.addPt(offsetL.p1);this.addFillet(p1,angle+Math.PI/2,angle-Math.PI/2,jsts.algorithm.CGAlgorithms.CLOCKWISE,this.distance);this.segList.addPt(offsetR.p1);break;case jsts.operation.buffer.BufferParameters.CAP_FLAT:this.segList.addPt(offsetL.p1);this.segList.addPt(offsetR.p1);break;case jsts.operation.buffer.BufferParameters.CAP_SQUARE:var squareCapSideOffset=new jsts.geom.Coordinate();squareCapSideOffset.x=Math.abs(this.distance)*Math.cos(angle);squareCapSideOffset.y=Math.abs(this.distance)*Math.sin(angle);var squareCapLOffset=new jsts.geom.Coordinate(offsetL.p1.x+ +squareCapSideOffset.x,offsetL.p1.y+squareCapSideOffset.y);var squareCapROffset=new jsts.geom.Coordinate(offsetR.p1.x+ +squareCapSideOffset.x,offsetR.p1.y+squareCapSideOffset.y);this.segList.addPt(squareCapLOffset);this.segList.addPt(squareCapROffset);break;}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addMitreJoin=function(p,offset0,offset1,distance){var isMitreWithinLimit=true;var intPt=null;try{intPt=jsts.algorithm.HCoordinate.intersection(offset0.p0,offset0.p1,offset1.p0,offset1.p1);var mitreRatio=distance<=0.0?1.0:intPt.distance(p)/Math.abs(distance);if(mitreRatio>this.bufParams.getMitreLimit()) +this.isMitreWithinLimit=false;}catch(e){if(e instanceof jsts.error.NotRepresentableError){intPt=new jsts.geom.Coordinate(0,0);this.isMitreWithinLimit=false;}} +if(isMitreWithinLimit){this.segList.addPt(intPt);}else{this.addLimitedMitreJoin(offset0,offset1,distance,bufParams.getMitreLimit());}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLimitedMitreJoin=function(offset0,offset1,distance,mitreLimit){var basePt=this.seg0.p1;var ang0=jsts.algorithm.Angle.angle(basePt,this.seg0.p0);var ang1=jsts.algorithm.Angle.angle(basePt,this.seg1.p1);var angDiff=jsts.algorithm.Angle.angleBetweenOriented(this.seg0.p0,basePt,this.seg1.p1);var angDiffHalf=angDiff/2;var midAng=jsts.algorithm.Angle.normalize(ang0+angDiffHalf);var mitreMidAng=jsts.algorithm.Angle.normalize(midAng+Math.PI);var mitreDist=mitreLimit*distance;var bevelDelta=mitreDist*Math.abs(Math.sin(angDiffHalf));var bevelHalfLen=distance-bevelDelta;var bevelMidX=basePt.x+mitreDist*Math.cos(mitreMidAng);var bevelMidY=basePt.y+mitreDist*Math.sin(mitreMidAng);var bevelMidPt=new jsts.geom.Coordinate(bevelMidX,bevelMidY);var mitreMidLine=new jsts.geom.LineSegment(basePt,bevelMidPt);var bevelEndLeft=mitreMidLine.pointAlongOffset(1.0,bevelHalfLen);var bevelEndRight=mitreMidLine.pointAlongOffset(1.0,-bevelHalfLen);if(this.side==jsts.geomgraph.Position.LEFT){this.segList.addPt(bevelEndLeft);this.segList.addPt(bevelEndRight);}else{this.segList.addPt(bevelEndRight);this.segList.addPt(bevelEndLeft);}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addBevelJoin=function(offset0,offset1){this.segList.addPt(offset0.p1);this.segList.addPt(offset1.p0);};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFillet=function(p,p0,p1,direction,radius){if(!(p1 instanceof jsts.geom.Coordinate)){this.addFillet2.apply(this,arguments);return;} +var dx0=p0.x-p.x;var dy0=p0.y-p.y;var startAngle=Math.atan2(dy0,dx0);var dx1=p1.x-p.x;var dy1=p1.y-p.y;var endAngle=Math.atan2(dy1,dx1);if(direction===jsts.algorithm.CGAlgorithms.CLOCKWISE){if(startAngle<=endAngle) +startAngle+=2.0*Math.PI;}else{if(startAngle>=endAngle) +startAngle-=2.0*Math.PI;} +this.segList.addPt(p0);this.addFillet(p,startAngle,endAngle,direction,radius);this.segList.addPt(p1);};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFillet2=function(p,startAngle,endAngle,direction,radius){var directionFactor=direction===jsts.algorithm.CGAlgorithms.CLOCKWISE?-1:1;var totalAngle=Math.abs(startAngle-endAngle);var nSegs=parseInt((totalAngle/this.filletAngleQuantum+0.5));if(nSegs<1) +return;var initAngle,currAngleInc;initAngle=0.0;currAngleInc=totalAngle/nSegs;var currAngle=initAngle;var pt=new jsts.geom.Coordinate();while(currAngle=iPrev) +pPrev=eiPrev.coord;var label=new jsts.geomgraph.Label(edge.getLabel());label.flip();var e=new jsts.geomgraph.EdgeEnd(edge,eiCurr.coord,pPrev,label);l.add(e);};jsts.operation.relate.EdgeEndBuilder.prototype.createEdgeEndForNext=function(edge,l,eiCurr,eiNext){var iNext=eiCurr.segmentIndex+1;if(iNext>=edge.getNumPoints()&&eiNext===null) +return;var pNext=edge.getCoordinate(iNext);if(eiNext!==null&&eiNext.segmentIndex===eiCurr.segmentIndex) +pNext=eiNext.coord;var e=new jsts.geomgraph.EdgeEnd(edge,eiCurr.coord,pNext,new jsts.geomgraph.Label(edge.getLabel()));l.add(e);};})();jsts.triangulate.quadedge.Vertex=function(){if(arguments.length===1){this.initFromCoordinate(arguments[0]);}else{this.initFromXY(arguments[0],arguments[1]);}};jsts.triangulate.quadedge.Vertex.LEFT=0;jsts.triangulate.quadedge.Vertex.RIGHT=1;jsts.triangulate.quadedge.Vertex.BEYOND=2;jsts.triangulate.quadedge.Vertex.BEHIND=3;jsts.triangulate.quadedge.Vertex.BETWEEN=4;jsts.triangulate.quadedge.Vertex.ORIGIN=5;jsts.triangulate.quadedge.Vertex.DESTINATION=6;jsts.triangulate.quadedge.Vertex.prototype.initFromXY=function(x,y){this.p=new jsts.geom.Coordinate(x,y);};jsts.triangulate.quadedge.Vertex.prototype.initFromCoordinate=function(_p){this.p=new jsts.geom.Coordinate(_p);};jsts.triangulate.quadedge.Vertex.prototype.getX=function(){return this.p.x;};jsts.triangulate.quadedge.Vertex.prototype.getY=function(){return this.p.y;};jsts.triangulate.quadedge.Vertex.prototype.getZ=function(){return this.p.z;};jsts.triangulate.quadedge.Vertex.prototype.setZ=function(z){this.p.z=z;};jsts.triangulate.quadedge.Vertex.prototype.getCoordinate=function(){return this.p;};jsts.triangulate.quadedge.Vertex.prototype.toString=function(){return'POINT ('+this.p.x+' '+this.p.y+')';};jsts.triangulate.quadedge.Vertex.prototype.equals=function(){if(arguments.length===1){return this.equalsExact(arguments[0]);}else{return this.equalsWithTolerance(arguments[0],arguments[1]);}};jsts.triangulate.quadedge.Vertex.prototype.equalsExact=function(other){return(this.p.x===other.getX()&&this.p.y===other.getY());};jsts.triangulate.quadedge.Vertex.prototype.equalsWithTolerance=function(other,tolerance){return(this.p.distance(other.getCoordinate())0.0){return jsts.triangulate.quadedge.Vertex.LEFT;} +if(sa<0.0){return jsts.triangulate.quadedge.Vertex.RIGHT;} +if((a.getX()*b.getX()<0.0)||(a.getY()*b.getY()<0.0)){return jsts.triangulate.quadedge.Vertex.BEHIND;} +if(a.magn()0);};jsts.triangulate.quadedge.Vertex.prototype.rightOf=function(e){return this.isCCW(e.dest(),e.orig());};jsts.triangulate.quadedge.Vertex.prototype.leftOf=function(e){return this.isCCW(e.orig(),e.dest());};jsts.triangulate.quadedge.Vertex.prototype.bisector=function(a,b){var dx,dy,l1,l2;dx=b.getX()-a.getX();dy=b.getY()-a.getY();l1=new jsts.algorithm.HCoordinate(a.getX()+(dx/2.0),a.getY()+ +(dy/2.0),1.0);l1=new jsts.algorithm.HCoordinate(a.getX()-dy+(dx/2.0),a.getY()+ +dx+(dy/2.0),1.0);return new jsts.algorithm.HCoordinate(l1,l2);};jsts.triangulate.quadedge.Vertex.prototype.distance=function(v1,v2){return v1.p.distance(v2.p);};jsts.triangulate.quadedge.Vertex.prototype.circumRadiusRatio=function(b,c){var x,radius,edgeLength,el;x=this.circleCenter(b,c);radius=this.distance(x,b);edgeLength=this.distance(this,b);el=this.distance(b,c);if(el0){if(x2>0){return-sign;} +else{return sign;}} +else{if(x2>0){return sign;} +else{return-sign;}}} +if((y1===0.0)||(x2===0.0)){if(y2>0){if(x1>0){return sign;} +else{return-sign;}} +else{if(x1>0){return-sign;} +else{return sign;}}} +if(0.0y2){sign=-sign;swap=x1;x1=x2;x2=swap;swap=y1;y1=y2;y2=swap;}} +else{if(y1<=-y2){sign=-sign;x2=-x2;y2=-y2;} +else{swap=x1;x1=-x2;x2=swap;swap=y1;y1=-y2;y2=swap;}}} +else{if(0.0=y2){x1=-x1;y1=-y1;x2=-x2;y2=-y2;} +else{sign=-sign;swap=-x1;x1=-x2;x2=swap;swap=-y1;y1=-y2;y2=swap;}}} +if(0.0x2){return sign;}} +else{return sign;}} +else{if(0.0=x2){sign=-sign;x1=-x1;x2=-x2;} +else{return-sign;}}} +while(true){count=count+1;k=Math.floor(x2/x1);x2=x2-k*x1;y2=y2-k*y1;if(y2<0.0){return-sign;} +if(y2>y1){return sign;} +if(x1>x2+x2){if(y1y2+y2){return-sign;} +else{x2=x1-x2;y2=y1-y2;sign=-sign;}} +if(y2===0.0){if(x2===0.0){return 0;} +else{return-sign;}} +if(x2===0.0){return sign;} +k=Math.floor(x1/x2);x1=x1-k*x2;y1=y1-k*y2;if(y1<0.0){return sign;} +if(y1>y2){return-sign;} +if(x2>x1+x1){if(y2y1+y1){return sign;} +else{x1=x2-x1;y1=y2-y1;sign=-sign;}} +if(y1===0.0){if(x1===0.0){return 0;} +else{return sign;}} +if(x1===0.0){return-sign;}}};jsts.index.DoubleBits=function(){};jsts.index.DoubleBits.powerOf2=function(exp){return Math.pow(2,exp);};jsts.index.DoubleBits.exponent=function(d){return jsts.index.DoubleBits.CVTFWD(64,d)-1023;};jsts.index.DoubleBits.CVTFWD=function(NumW,Qty){var Sign,Expo,Mant,Bin,nb01='';var Inf={32:{d:0x7F,c:0x80,b:0,a:0},64:{d:0x7FF0,c:0,b:0,a:0}};var ExW={32:8,64:11}[NumW],MtW=NumW-ExW-1;if(!Bin){Sign=Qty<0||1/Qty<0;if(!isFinite(Qty)){Bin=Inf[NumW];if(Sign){Bin.d+=1<<(NumW/4-1);} +Expo=Math.pow(2,ExW)-1;Mant=0;}} +if(!Bin){Expo={32:127,64:1023}[NumW];Mant=Math.abs(Qty);while(Mant>=2){Expo++;Mant/=2;} +while(Mant<1&&Expo>0){Expo--;Mant*=2;} +if(Expo<=0){Mant/=2;nb01='Zero or Denormal';} +if(NumW===32&&Expo>254){nb01='Too big for Single';Bin={d:Sign?0xFF:0x7F,c:0x80,b:0,a:0};Expo=Math.pow(2,ExW)-1;Mant=0;}} +return Expo;};(function(){jsts.triangulate.quadedge.QuadEdge=function(){this.rot=null;this.vertex=null;this.next=null;this.data=null;};var QuadEdge=jsts.triangulate.quadedge.QuadEdge;jsts.triangulate.quadedge.QuadEdge.makeEdge=function(o,d){var q0,q1,q2,q3,base;q0=new QuadEdge();q1=new QuadEdge();q2=new QuadEdge();q3=new QuadEdge();q0.rot=q1;q1.rot=q2;q2.rot=q3;q3.rot=q0;q0.setNext(q0);q1.setNext(q3);q2.setNext(q2);q3.setNext(q1);base=q0;base.setOrig(o);base.setDest(d);return base;};jsts.triangulate.quadedge.QuadEdge.connect=function(a,b){var e=QuadEdge.makeEdge(a.dest(),b.orig());QuadEdge.splice(e,a.lNext());QuadEdge.splice(e.sym(),b);return e;};jsts.triangulate.quadedge.QuadEdge.splice=function(a,b){var alpha,beta,t1,t2,t3,t4;alpha=a.oNext().rot;beta=b.oNext().rot;t1=b.oNext();t2=a.oNext();t3=beta.oNext();t4=alpha.oNext();a.setNext(t1);b.setNext(t2);alpha.setNext(t3);beta.setNext(t4);};jsts.triangulate.quadedge.QuadEdge.swap=function(e){var a,b;a=e.oPrev();b=e.sym().oPrev();QuadEdge.splice(e,a);QuadEdge.splice(e.sym(),b);QuadEdge.splice(e,a.lNext());QuadEdge.splice(e.sym(),b.lNext());e.setOrig(a.dest());e.setDest(b.dest());};jsts.triangulate.quadedge.QuadEdge.prototype.getPrimary=function(){if(this.orig().getCoordinate().compareTo(this.dest().getCoordinate())<=0){return this;} +else{return this.sym();}};jsts.triangulate.quadedge.QuadEdge.prototype.setData=function(data){this.data=data;};jsts.triangulate.quadedge.QuadEdge.prototype.getData=function(){return this.data;};jsts.triangulate.quadedge.QuadEdge.prototype.delete_jsts=function(){this.rot=null;};jsts.triangulate.quadedge.QuadEdge.prototype.isLive=function(){return this.rot!==null;};jsts.triangulate.quadedge.QuadEdge.prototype.setNext=function(next){this.next=next;};jsts.triangulate.quadedge.QuadEdge.prototype.invRot=function(){return this.rot.sym();};jsts.triangulate.quadedge.QuadEdge.prototype.sym=function(){return this.rot.rot;};jsts.triangulate.quadedge.QuadEdge.prototype.oNext=function(){return this.next;};jsts.triangulate.quadedge.QuadEdge.prototype.oPrev=function(){return this.rot.next.rot;};jsts.triangulate.quadedge.QuadEdge.prototype.dNext=function(){return this.sym().oNext().sym();};jsts.triangulate.quadedge.QuadEdge.prototype.dPrev=function(){return this.invRot().oNext().invRot();};jsts.triangulate.quadedge.QuadEdge.prototype.lNext=function(){return this.invRot().oNext().rot;};jsts.triangulate.quadedge.QuadEdge.prototype.lPrev=function(){return this.next.sym();};jsts.triangulate.quadedge.QuadEdge.prototype.rNext=function(){return this.rot.next.invRot();};jsts.triangulate.quadedge.QuadEdge.prototype.rPrev=function(){return this.sym().oNext();};jsts.triangulate.quadedge.QuadEdge.prototype.setOrig=function(o){this.vertex=o;};jsts.triangulate.quadedge.QuadEdge.prototype.setDest=function(d){this.sym().setOrig(d);};jsts.triangulate.quadedge.QuadEdge.prototype.orig=function(){return this.vertex;};jsts.triangulate.quadedge.QuadEdge.prototype.dest=function(){return this.sym().orig();};jsts.triangulate.quadedge.QuadEdge.prototype.getLength=function(){return this.orig().getCoordinate().distance(dest().getCoordinate());};jsts.triangulate.quadedge.QuadEdge.prototype.equalsNonOriented=function(qe){if(this.equalsOriented(qe)){return true;} +if(this.equalsOriented(qe.sym())){return true;} +return false;};jsts.triangulate.quadedge.QuadEdge.prototype.equalsOriented=function(qe){if(this.orig().getCoordinate().equals2D(qe.orig().getCoordinate())&&this.dest().getCoordinate().equals2D(qe.dest().getCoordinate())){return true;} +return false;};jsts.triangulate.quadedge.QuadEdge.prototype.toLineSegment=function() +{return new jsts.geom.LineSegment(this.vertex.getCoordinate(),this.dest().getCoordinate());};jsts.triangulate.quadedge.QuadEdge.prototype.toString=function(){var p0,p1;p0=this.vertex.getCoordinate();p1=this.dest().getCoordinate();return jsts.io.WKTWriter.toLineString(p0,p1);};})();(function(){var Assert=jsts.util.Assert;jsts.geomgraph.EdgeEnd=function(edge,p0,p1,label){this.edge=edge;if(p0&&p1){this.init(p0,p1);} +if(label){this.label=label||null;}};jsts.geomgraph.EdgeEnd.prototype.edge=null;jsts.geomgraph.EdgeEnd.prototype.label=null;jsts.geomgraph.EdgeEnd.prototype.node=null;jsts.geomgraph.EdgeEnd.prototype.p0=null;jsts.geomgraph.EdgeEnd.prototype.p1=null;jsts.geomgraph.EdgeEnd.prototype.dx=null;jsts.geomgraph.EdgeEnd.prototype.dy=null;jsts.geomgraph.EdgeEnd.prototype.quadrant=null;jsts.geomgraph.EdgeEnd.prototype.init=function(p0,p1){this.p0=p0;this.p1=p1;this.dx=p1.x-p0.x;this.dy=p1.y-p0.y;this.quadrant=jsts.geomgraph.Quadrant.quadrant(this.dx,this.dy);Assert.isTrue(!(this.dx===0&&this.dy===0),'EdgeEnd with identical endpoints found');};jsts.geomgraph.EdgeEnd.prototype.getEdge=function(){return this.edge;};jsts.geomgraph.EdgeEnd.prototype.getLabel=function(){return this.label;};jsts.geomgraph.EdgeEnd.prototype.getCoordinate=function(){return this.p0;};jsts.geomgraph.EdgeEnd.prototype.getDirectedCoordinate=function(){return this.p1;};jsts.geomgraph.EdgeEnd.prototype.getQuadrant=function(){return this.quadrant;};jsts.geomgraph.EdgeEnd.prototype.getDx=function(){return this.dx;};jsts.geomgraph.EdgeEnd.prototype.getDy=function(){return this.dy;};jsts.geomgraph.EdgeEnd.prototype.setNode=function(node){this.node=node;};jsts.geomgraph.EdgeEnd.prototype.getNode=function(){return this.node;};jsts.geomgraph.EdgeEnd.prototype.compareTo=function(e){return this.compareDirection(e);};jsts.geomgraph.EdgeEnd.prototype.compareDirection=function(e){if(this.dx===e.dx&&this.dy===e.dy) +return 0;if(this.quadrant>e.quadrant) +return 1;if(this.quadrant0.0;};jsts.triangulate.IncrementalDelaunayTriangulator.prototype.insertSites=function(vertices){var i=0,il=vertices.length,v;for(i;i=list.length){return null;} +return list[i];};jsts.operation.union.CascadedPolygonUnion.prototype.reduceToGeometries=function(geomTree){var geoms=[];for(var i=0,l=geomTree.length;i=0;i--){segGen.addNextSegment(simp2[i],true);} +segGen.addLastSegment();segGen.addLineEndCap(simp2[1],simp2[0]);segGen.closeRing();};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeSingleSidedBufferCurve=function(inputPts,isRightSide,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);if(isRightSide){segGen.addSegments(inputPts,true);var simp2=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,-distTol);var n2=simp2.length-1;segGen.initSideSegments(simp2[n2],simp2[n2-1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=n2-2;i>=0;i--){segGen.addNextSegment(simp2[i],true);}}else{segGen.addSegments(inputPts,false);var simp1=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n1=simp1.length-1;segGen.initSideSegments(simp1[0],simp1[1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=2;i<=n1;i++){segGen.addNextSegment(simp1[i],true);}} +segGen.addLastSegment();segGen.closeRing();};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeOffsetCurve=function(inputPts,isRightSide,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(distance);if(isRightSide){var simp2=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,-distTol);var n2=simp2.length-1;segGen.initSideSegments(simp2[n2],simp2[n2-1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=n2-2;i>=0;i--){segGen.addNextSegment(simp2[i],true);}}else{var simp1=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n1=simp1.length-1;segGen.initSideSegments(simp1[0],simp1[1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=2;i<=n1;i++){segGen.addNextSegment(simp1[i],true);}} +segGen.addLastSegment();};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeRingBufferCurve=function(inputPts,side,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);if(side===jsts.geomgraph.Position.RIGHT) +distTol=-distTol;var simp=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n=simp.length-1;segGen.initSideSegments(simp[n-1],simp[0],side);for(var i=1;i<=n;i++){var addStartPoint=i!==1;segGen.addNextSegment(simp[i],addStartPoint);} +segGen.closeRing();};jsts.geomgraph.Quadrant=function(){};jsts.geomgraph.Quadrant.NE=0;jsts.geomgraph.Quadrant.NW=1;jsts.geomgraph.Quadrant.SW=2;jsts.geomgraph.Quadrant.SE=3;jsts.geomgraph.Quadrant.quadrant=function(dx,dy){if(dx instanceof jsts.geom.Coordinate){return jsts.geomgraph.Quadrant.quadrant2.apply(this,arguments);} +if(dx===0.0&&dy===0.0) +throw new jsts.error.IllegalArgumentError('Cannot compute the quadrant for point ( '+dx+', '+dy+' )');if(dx>=0.0){if(dy>=0.0) +return jsts.geomgraph.Quadrant.NE;else +return jsts.geomgraph.Quadrant.SE;}else{if(dy>=0.0) +return jsts.geomgraph.Quadrant.NW;else +return jsts.geomgraph.Quadrant.SW;}};jsts.geomgraph.Quadrant.quadrant2=function(p0,p1){if(p1.x===p0.x&&p1.y===p0.y) +throw new jsts.error.IllegalArgumentError('Cannot compute the quadrant for two identical points '+p0);if(p1.x>=p0.x){if(p1.y>=p0.y) +return jsts.geomgraph.Quadrant.NE;else +return jsts.geomgraph.Quadrant.SE;}else{if(p1.y>=p0.y) +return jsts.geomgraph.Quadrant.NW;else +return jsts.geomgraph.Quadrant.SW;}};jsts.geomgraph.Quadrant.isOpposite=function(quad1,quad2){if(quad1===quad2) +return false;var diff=(quad1-quad2+4)%4;if(diff===2) +return true;return false;};jsts.geomgraph.Quadrant.commonHalfPlane=function(quad1,quad2){if(quad1===quad2) +return quad1;var diff=(quad1-quad2+4)%4;if(diff===2) +return-1;var min=(quad1quad2)?quad1:quad2;if(min===0&&max===3) +return 3;return min;};jsts.geomgraph.Quadrant.isInHalfPlane=function(quad,halfPlane){if(halfPlane===jsts.geomgraph.Quadrant.SE){return quad===jsts.geomgraph.Quadrant.SE||quad===jsts.geomgraph.Quadrant.SW;} +return quad===halfPlane||quad===halfPlane+1;};jsts.geomgraph.Quadrant.isNorthern=function(quad){return quad===jsts.geomgraph.Quadrant.NE||quad===jsts.geomgraph.Quadrant.NW;};jsts.planargraph.PlanarGraph=function(){this.nodeMap={};this.edges=[];this.dirEdges=[];};jsts.planargraph.PlanarGraph.prototype.edges=null;jsts.planargraph.PlanarGraph.prototype.dirEdges=null;jsts.planargraph.PlanarGraph.prototype.nodeMap=null;jsts.planargraph.PlanarGraph.prototype.getNodes=function(){var array=[];for(var key in this.nodeMap){if(this.nodeMap.hasOwnProperty(key)){array.push(this.nodeMap[key]);}} +var compare=function(a,b){return a.compareTo(b);};array.sort(compare);return array;};jsts.index.strtree.AbstractNode=function(level){this.level=level;this.childBoundables=[];};OpenLayers.inherit(jsts.index.strtree.AbstractNode,jsts.index.strtree.Boundable);jsts.index.strtree.AbstractNode.prototype.childBoundables=null;jsts.index.strtree.AbstractNode.prototype.bounds=null;jsts.index.strtree.AbstractNode.prototype.level=null;jsts.index.strtree.AbstractNode.prototype.getChildBoundables=function(){return this.childBoundables;};jsts.index.strtree.AbstractNode.prototype.computeBounds=function(){throw new jsts.error.AbstractMethodInvocationError();};jsts.index.strtree.AbstractNode.prototype.getBounds=function(){if(this.bounds===null){this.bounds=this.computeBounds();} +return this.bounds;};jsts.index.strtree.AbstractNode.prototype.getLevel=function(){return this.level;};jsts.index.strtree.AbstractNode.prototype.addChildBoundable=function(childBoundable){this.childBoundables.push(childBoundable);};(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;var EdgeEnd=jsts.geomgraph.EdgeEnd;jsts.geomgraph.DirectedEdge=function(edge,isForward){EdgeEnd.call(this,edge);this.depth=[0,-999,-999];this._isForward=isForward;if(isForward){this.init(edge.getCoordinate(0),edge.getCoordinate(1));}else{var n=edge.getNumPoints()-1;this.init(edge.getCoordinate(n),edge.getCoordinate(n-1));} +this.computeDirectedLabel();};jsts.geomgraph.DirectedEdge.prototype=new EdgeEnd();jsts.geomgraph.DirectedEdge.constructor=jsts.geomgraph.DirectedEdge;jsts.geomgraph.DirectedEdge.depthFactor=function(currLocation,nextLocation){if(currLocation===Location.EXTERIOR&&nextLocation===Location.INTERIOR) +return 1;else if(currLocation===Location.INTERIOR&&nextLocation===Location.EXTERIOR) +return-1;return 0;};jsts.geomgraph.DirectedEdge.prototype._isForward=null;jsts.geomgraph.DirectedEdge.prototype._isInResult=false;jsts.geomgraph.DirectedEdge.prototype._isVisited=false;jsts.geomgraph.DirectedEdge.prototype.sym=null;jsts.geomgraph.DirectedEdge.prototype.next=null;jsts.geomgraph.DirectedEdge.prototype.nextMin=null;jsts.geomgraph.DirectedEdge.prototype.edgeRing=null;jsts.geomgraph.DirectedEdge.prototype.minEdgeRing=null;jsts.geomgraph.DirectedEdge.prototype.depth=null;jsts.geomgraph.DirectedEdge.prototype.getEdge=function(){return this.edge;};jsts.geomgraph.DirectedEdge.prototype.setInResult=function(isInResult){this._isInResult=isInResult;};jsts.geomgraph.DirectedEdge.prototype.isInResult=function(){return this._isInResult;};jsts.geomgraph.DirectedEdge.prototype.isVisited=function(){return this._isVisited;};jsts.geomgraph.DirectedEdge.prototype.setVisited=function(isVisited){this._isVisited=isVisited;};jsts.geomgraph.DirectedEdge.prototype.setEdgeRing=function(edgeRing){this.edgeRing=edgeRing;};jsts.geomgraph.DirectedEdge.prototype.getEdgeRing=function(){return this.edgeRing;};jsts.geomgraph.DirectedEdge.prototype.setMinEdgeRing=function(minEdgeRing){this.minEdgeRing=minEdgeRing;};jsts.geomgraph.DirectedEdge.prototype.getMinEdgeRing=function(){return this.minEdgeRing;};jsts.geomgraph.DirectedEdge.prototype.getDepth=function(position){return this.depth[position];};jsts.geomgraph.DirectedEdge.prototype.setDepth=function(position,depthVal){if(this.depth[position]!==-999){if(this.depth[position]!==depthVal) +throw new jsts.error.TopologyError('assigned depths do not match',this.getCoordinate());} +this.depth[position]=depthVal;};jsts.geomgraph.DirectedEdge.prototype.getDepthDelta=function(){var depthDelta=this.edge.getDepthDelta();if(!this._isForward) +depthDelta=-depthDelta;return depthDelta;};jsts.geomgraph.DirectedEdge.prototype.setVisitedEdge=function(isVisited){this.setVisited(isVisited);this.sym.setVisited(isVisited);};jsts.geomgraph.DirectedEdge.prototype.getSym=function(){return this.sym;};jsts.geomgraph.DirectedEdge.prototype.isForward=function(){return this._isForward;};jsts.geomgraph.DirectedEdge.prototype.setSym=function(de){this.sym=de;};jsts.geomgraph.DirectedEdge.prototype.getNext=function(){return this.next;};jsts.geomgraph.DirectedEdge.prototype.setNext=function(next){this.next=next;};jsts.geomgraph.DirectedEdge.prototype.getNextMin=function(){return this.nextMin;};jsts.geomgraph.DirectedEdge.prototype.setNextMin=function(nextMin){this.nextMin=nextMin;};jsts.geomgraph.DirectedEdge.prototype.isLineEdge=function(){var isLine=this.label.isLine(0)||this.label.isLine(1);var isExteriorIfArea0=!this.label.isArea(0)||this.label.allPositionsEqual(0,Location.EXTERIOR);var isExteriorIfArea1=!this.label.isArea(1)||this.label.allPositionsEqual(1,Location.EXTERIOR);return isLine&&isExteriorIfArea0&&isExteriorIfArea1;};jsts.geomgraph.DirectedEdge.prototype.isInteriorAreaEdge=function(){var isInteriorAreaEdge=true;for(var i=0;i<2;i++){if(!(this.label.isArea(i)&&this.label.getLocation(i,Position.LEFT)===Location.INTERIOR&&this.label.getLocation(i,Position.RIGHT)===Location.INTERIOR)){isInteriorAreaEdge=false;}} +return isInteriorAreaEdge;};jsts.geomgraph.DirectedEdge.prototype.computeDirectedLabel=function(){this.label=new jsts.geomgraph.Label(this.edge.getLabel());if(!this._isForward) +this.label.flip();};jsts.geomgraph.DirectedEdge.prototype.setEdgeDepths=function(position,depth){var depthDelta=this.getEdge().getDepthDelta();if(!this._isForward) +depthDelta=-depthDelta;var directionFactor=1;if(position===Position.LEFT) +directionFactor=-1;var oppositePos=Position.opposite(position);var delta=depthDelta*directionFactor;var oppositeDepth=depth+delta;this.setDepth(position,depth);this.setDepth(oppositePos,oppositeDepth);};})();jsts.operation.distance.DistanceOp=function(g0,g1,terminateDistance){this.ptLocator=new jsts.algorithm.PointLocator();this.geom=[];this.geom[0]=g0;this.geom[1]=g1;this.terminateDistance=terminateDistance;};jsts.operation.distance.DistanceOp.prototype.geom=null;jsts.operation.distance.DistanceOp.prototype.terminateDistance=0.0;jsts.operation.distance.DistanceOp.prototype.ptLocator=null;jsts.operation.distance.DistanceOp.prototype.minDistanceLocation=null;jsts.operation.distance.DistanceOp.prototype.minDistance=Number.MAX_VALUE;jsts.operation.distance.DistanceOp.distance=function(g0,g1){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,0.0);return distOp.distance();};jsts.operation.distance.DistanceOp.isWithinDistance=function(g0,g1,distance){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,distance);return distOp.distance()<=distance;};jsts.operation.distance.DistanceOp.nearestPoints=function(g0,g1){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,0.0);return distOp.nearestPoints();};jsts.operation.distance.DistanceOp.prototype.distance=function(){if(this.geom[0]===null||this.geom[1]===null) +throw new jsts.error.IllegalArgumentError('null geometries are not supported');if(this.geom[0].isEmpty()||this.geom[1].isEmpty()) +return 0.0;this.computeMinDistance();return this.minDistance;};jsts.operation.distance.DistanceOp.prototype.nearestPoints=function(){this.computeMinDistance();var nearestPts=[this.minDistanceLocation[0].getCoordinate(),this.minDistanceLocation[1].getCoordinate()];return nearestPts;};jsts.operation.distance.DistanceOp.prototype.nearestLocations=function(){this.computeMinDistance();return this.minDistanceLocation;};jsts.operation.distance.DistanceOp.prototype.updateMinDistance=function(locGeom,flip){if(locGeom[0]===null) +return;if(flip){this.minDistanceLocation[0]=locGeom[1];this.minDistanceLocation[1]=locGeom[0];}else{this.minDistanceLocation[0]=locGeom[0];this.minDistanceLocation[1]=locGeom[1];}};jsts.operation.distance.DistanceOp.prototype.computeMinDistance=function(){if(arguments.length>0){this.computeMinDistance2.apply(this,arguments);return;} +if(this.minDistanceLocation!==null) +return;this.minDistanceLocation=[];this.computeContainmentDistance();if(this.minDistance<=this.terminateDistance) +return;this.computeFacetDistance();};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance=function(){if(arguments.length===2){this.computeContainmentDistance2.apply(this,arguments);return;}else if(arguments.length===3&&(!arguments[0]instanceof jsts.operation.distance.GeometryLocation)){this.computeContainmentDistance3.apply(this,arguments);return;}else if(arguments.length===3){this.computeContainmentDistance4.apply(this,arguments);return;} +var locPtPoly=[];this.computeContainmentDistance2(0,locPtPoly);if(this.minDistance<=this.terminateDistance) +return;this.computeContainmentDistance2(1,locPtPoly);};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance2=function(polyGeomIndex,locPtPoly){var locationsIndex=1-polyGeomIndex;var polys=jsts.geom.util.PolygonExtracter.getPolygons(this.geom[polyGeomIndex]);if(polys.length>0){var insideLocs=jsts.operation.distance.ConnectedElementLocationFilter.getLocations(this.geom[locationsIndex]);this.computeContainmentDistance3(insideLocs,polys,locPtPoly);if(this.minDistance<=this.terminateDistance){this.minDistanceLocation[locationsIndex]=locPtPoly[0];this.minDistanceLocation[polyGeomIndex]=locPtPoly[1];return;}}};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance3=function(locs,polys,locPtPoly){for(var i=0;ithis.minDistance){return;} +var coord0=line0.getCoordinates();var coord1=line1.getCoordinates();for(var i=0;ithis.minDistance){return;} +var coord0=line.getCoordinates();var coord=pt.getCoordinate();for(var i=0;i0.0&&this.isErodedCompletely(hole,-this.distance)) +continue;this.addPolygonRing(holeCoord,offsetDistance,jsts.geomgraph.Position.opposite(offsetSide),jsts.geom.Location.INTERIOR,jsts.geom.Location.EXTERIOR);}};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addPolygonRing=function(coord,offsetDistance,side,cwLeftLoc,cwRightLoc){if(offsetDistance==0.0&&coord.length=jsts.geom.LinearRing.MINIMUM_VALID_SIZE&&jsts.algorithm.CGAlgorithms.isCCW(coord)){leftLoc=cwRightLoc;rightLoc=cwLeftLoc;side=jsts.geomgraph.Position.opposite(side);} +var curve=this.curveBuilder.getRingCurve(coord,side,offsetDistance);this.addCurve(curve,leftLoc,rightLoc);};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.isErodedCompletely=function(ring,bufferDistance){var ringCoord=ring.getCoordinates();var minDiam=0.0;if(ringCoord.length<4) +return bufferDistance<0;if(ringCoord.length==4) +return this.isTriangleErodedCompletely(ringCoord,bufferDistance);var env=ring.getEnvelopeInternal();var envMinDimension=Math.min(env.getHeight(),env.getWidth());if(bufferDistance<0.0&&2*Math.abs(bufferDistance)>envMinDimension) +return true;return false;};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.isTriangleErodedCompletely=function(triangleCoord,bufferDistance){var tri=new Triangle(triangleCoord[0],triangleCoord[1],triangleCoord[2]);var inCentre=tri.inCentre();var distToCentre=jsts.algorithm.CGAlgorithms.distancePointLine(inCentre,tri.p0,tri.p1);return distToCentre0){return this.isNull2.apply(this,arguments);} +for(var i=0;i<2;i++){for(var j=0;j<3;j++){if(this.depth[i][j]!==jsts.geomgraph.Depth.NULL_VALUE) +return false;}} +return true;};jsts.geomgraph.Depth.prototype.isNull2=function(geomIndex){if(arguments.length>1){return this.isNull3.apply(this,arguments);} +return this.depth[geomIndex][1]==jsts.geomgraph.Depth.NULL_VALUE;};jsts.geomgraph.Depth.prototype.isNull3=function(geomIndex,posIndex){return this.depth[geomIndex][posIndex]==jsts.geomgraph.Depth.NULL_VALUE;};jsts.geomgraph.Depth.prototype.add=function(lbl){for(var i=0;i<2;i++){for(var j=1;j<3;j++){var loc=lbl.getLocation(i,j);if(loc===Location.EXTERIOR||loc===Location.INTERIOR){if(this.isNull(i,j)){this.depth[i][j]=jsts.geomgraph.Depth.depthAtLocation(loc);}else +this.depth[i][j]+=jsts.geomgraph.Depth.depthAtLocation(loc);}}}};jsts.geomgraph.Depth.prototype.getDelta=function(geomIndex){return this.depth[geomIndex][Position.RIGHT]- +this.depth[geomIndex][Position.LEFT];};jsts.geomgraph.Depth.prototype.normalize=function(){for(var i=0;i<2;i++){if(!this.isNull(i)){var minDepth=this.depth[i][1];if(this.depth[i][2]minDepth) +newValue=1;this.depth[i][j]=newValue;}}}};jsts.geomgraph.Depth.prototype.toString=function(){return'A: '+this.depth[0][1]+','+this.depth[0][2]+' B: '+ +this.depth[1][1]+','+this.depth[1][2];};})();jsts.operation.buffer.BufferParameters=function(quadrantSegments,endCapStyle,joinStyle,mitreLimit){if(quadrantSegments) +this.setQuadrantSegments(quadrantSegments);if(endCapStyle) +this.setEndCapStyle(endCapStyle);if(joinStyle) +this.setJoinStyle(joinStyle);if(mitreLimit) +this.setMitreLimit(mitreLimit);};jsts.operation.buffer.BufferParameters.CAP_ROUND=1;jsts.operation.buffer.BufferParameters.CAP_FLAT=2;jsts.operation.buffer.BufferParameters.CAP_SQUARE=3;jsts.operation.buffer.BufferParameters.JOIN_ROUND=1;jsts.operation.buffer.BufferParameters.JOIN_MITRE=2;jsts.operation.buffer.BufferParameters.JOIN_BEVEL=3;jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS=8;jsts.operation.buffer.BufferParameters.DEFAULT_MITRE_LIMIT=5.0;jsts.operation.buffer.BufferParameters.prototype.quadrantSegments=jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS;jsts.operation.buffer.BufferParameters.prototype.endCapStyle=jsts.operation.buffer.BufferParameters.CAP_ROUND;jsts.operation.buffer.BufferParameters.prototype.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_ROUND;jsts.operation.buffer.BufferParameters.prototype.mitreLimit=jsts.operation.buffer.BufferParameters.DEFAULT_MITRE_LIMIT;jsts.operation.buffer.BufferParameters.prototype._isSingleSided=false;jsts.operation.buffer.BufferParameters.prototype.getQuadrantSegments=function(){return this.quadrantSegments;};jsts.operation.buffer.BufferParameters.prototype.setQuadrantSegments=function(quadrantSegments){this.quadrantSegments=quadrantSegments;};jsts.operation.buffer.BufferParameters.prototype.setQuadrantSegments=function(quadSegs){this.quadrantSegments=quadSegs;if(this.quadrantSegments===0) +this.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_BEVEL;if(this.quadrantSegments<0){this.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_MITRE;this.mitreLimit=Math.abs(this.quadrantSegments);} +if(quadSegs<=0){this.quadrantSegments=1;} +if(this.joinStyle!==jsts.operation.buffer.BufferParameters.JOIN_ROUND){this.quadrantSegments=jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS;}};jsts.operation.buffer.BufferParameters.bufferDistanceError=function(quadSegs){var alpha=Math.PI/2.0/quadSegs;return 1-Math.cos(alpha/2.0);};jsts.operation.buffer.BufferParameters.prototype.getEndCapStyle=function(){return this.endCapStyle;};jsts.operation.buffer.BufferParameters.prototype.setEndCapStyle=function(endCapStyle){this.endCapStyle=endCapStyle;};jsts.operation.buffer.BufferParameters.prototype.getJoinStyle=function(){return this.joinStyle;};jsts.operation.buffer.BufferParameters.prototype.setJoinStyle=function(joinStyle){this.joinStyle=joinStyle;};jsts.operation.buffer.BufferParameters.prototype.getMitreLimit=function(){return this.mitreLimit;};jsts.operation.buffer.BufferParameters.prototype.setMitreLimit=function(mitreLimit){this.mitreLimit=mitreLimit;};jsts.operation.buffer.BufferParameters.prototype.setSingleSided=function(isSingleSided){this._isSingleSided=isSingleSided;};jsts.operation.buffer.BufferParameters.prototype.isSingleSided=function(){return this._isSingleSided;};jsts.operation.distance.GeometryLocation=function(component,segIndex,pt){this.component=component;this.segIndex=segIndex;this.pt=pt;};jsts.operation.distance.GeometryLocation.INSIDE_AREA=-1;jsts.operation.distance.GeometryLocation.prototype.component=null;jsts.operation.distance.GeometryLocation.prototype.segIndex=null;jsts.operation.distance.GeometryLocation.prototype.pt=null;jsts.operation.distance.GeometryLocation.prototype.getGeometryComponent=function(){return this.component;};jsts.operation.distance.GeometryLocation.prototype.getSegmentIndex=function(){return this.segIndex;};jsts.operation.distance.GeometryLocation.prototype.getCoordinate=function(){return this.pt;};jsts.operation.distance.GeometryLocation.prototype.isInsideArea=function(){return this.segIndex===jsts.operation.distance.GeometryLocation.INSIDE_AREA;};jsts.io.WKTReader=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory();this.precisionModel=this.geometryFactory.getPrecisionModel();};jsts.io.WKTReader.prototype.read=function(wkt){var geometry=OpenLayers.Geometry.fromWKT(wkt);if(geometry instanceof jsts.geom.Coordinate){geometry=new jsts.geom.Point(geometry,this.geometryFactory);} +if(geometry instanceof OpenLayers.Geometry.Collection&&!(geometry instanceof OpenLayers.Geometry.Point||geometry instanceof OpenLayers.Geometry.LineString||geometry instanceof OpenLayers.Geometry.Polygon||geometry instanceof OpenLayers.Geometry.MultiPoint||geometry instanceof OpenLayers.Geometry.MultiLineString||geometry instanceof OpenLayers.Geometry.MultiPolygon)){geometry=new jsts.geom.GeometryCollection(geometry.components,this.geometryFactory);} +if(geometry!==undefined&&geometry.factory===undefined){geometry.factory=this.geometryFactory;} +if(geometry===undefined){var type=wkt.split(' ')[0].toLowerCase();switch(type){case'point':geometry=new jsts.geom.Point(null,this.geometryFactory);break;case'multipoint':geometry=new jsts.geom.MultiPoint(null,this.geometryFactory);break;case'linestring':geometry=new jsts.geom.LineString(null,this.geometryFactory);break;case'multilinestring':geometry=new jsts.geom.MultiLineString(null,this.geometryFactory);break;case'polygon':geometry=new jsts.geom.Polygon(null,this.geometryFactory);break;case'multipolygon':geometry=new jsts.geom.MultiPolygon(null,this.geometryFactory);break;case'geometrycollection':geometry=new jsts.geom.GeometryCollection(null,this.geometryFactory);break;}} +if(this.precisionModel.getType()===jsts.geom.PrecisionModel.FIXED){this.reducePrecision(geometry.components);} +return geometry;};jsts.io.WKTReader.prototype.reducePrecision=function(components){var i,component;if(!components)return;for(i=0;iother.segmentIndex)return 1;if(this.coord.equals2D(other.coord))return 0;return jsts.noding.SegmentPointComparator.compare(this.segmentOctant,this.coord,other.coord);};jsts.noding.SegmentNode.prototype.toString=function(){return'SegmentNode_'+this.coord+'_'+this.segmentIndex;};jsts.index.chain.MonotoneChainSelectAction=function(){this.tempEnv1=new jsts.geom.Envelope();this.selectedSegment=new jsts.geom.LineSegment();};jsts.index.chain.MonotoneChainSelectAction.prototype.tempEnv1=null;jsts.index.chain.MonotoneChainSelectAction.prototype.selectedSegment=null;jsts.index.chain.MonotoneChainSelectAction.prototype.select=function(mc,start){mc.getLineSegment(start,this.selectedSegment);this.select2(this.selectedSegment);};jsts.index.chain.MonotoneChainSelectAction.prototype.select2=function(seg){};jsts.index.quadtree.Quadtree=function(){this.root=new jsts.index.quadtree.Root();this.minExtent=1.0;};jsts.index.quadtree.Quadtree.ensureExtent=function(itemEnv,minExtent){var minx,maxx,miny,maxy;minx=itemEnv.getMinX();maxx=itemEnv.getMaxX();miny=itemEnv.getMinY();maxy=itemEnv.getMaxY();if(minx!==maxx&&miny!==maxy){return itemEnv;} +if(minx===maxx){minx=minx-(minExtent/2.0);maxx=minx+(minExtent/2.0);} +if(miny===maxy){miny=miny-(minExtent/2.0);maxy=miny+(minExtent/2.0);} +return new jsts.geom.Envelope(minx,maxx,miny,maxy);};jsts.index.quadtree.Quadtree.prototype.depth=function(){return this.root.depth();};jsts.index.quadtree.Quadtree.prototype.size=function(){return this.root.size();};jsts.index.quadtree.Quadtree.prototype.insert=function(itemEnv,item){this.collectStats(itemEnv);var insertEnv=jsts.index.quadtree.Quadtree.ensureExtent(itemEnv,this.minExtent);this.root.insert(insertEnv,item);};jsts.index.quadtree.Quadtree.prototype.remove=function(itemEnv,item){var posEnv=jsts.index.quadtree.Quadtree.ensureExtent(itemEnv,this.minExtent);return this.root.remove(posEnv,item);};jsts.index.quadtree.Quadtree.prototype.query=function(){if(arguments.length===1){return jsts.index.quadtree.Quadtree.prototype.queryByEnvelope.apply(this,arguments);}else{jsts.index.quadtree.Quadtree.prototype.queryWithVisitor.apply(this,arguments);}};jsts.index.quadtree.Quadtree.prototype.queryByEnvelope=function(searchEnv){var visitor=new jsts.index.ArrayListVisitor();this.query(searchEnv,visitor);return visitor.getItems();};jsts.index.quadtree.Quadtree.prototype.queryWithVisitor=function(searchEnv,visitor){this.root.visit(searchEnv,visitor);};jsts.index.quadtree.Quadtree.prototype.queryAll=function(){var foundItems=[];foundItems=this.root.addAllItems(foundItems);return foundItems;};jsts.index.quadtree.Quadtree.prototype.collectStats=function(itemEnv){var delX=itemEnv.getWidth();if(delX0.0){this.minExtent=delX;} +var delY=itemEnv.getHeight();if(delY0.0){this.minExtent=delY;}};jsts.operation.relate.RelateNodeFactory=function(){};jsts.operation.relate.RelateNodeFactory.prototype=new jsts.geomgraph.NodeFactory();jsts.operation.relate.RelateNodeFactory.prototype.createNode=function(coord){return new jsts.operation.relate.RelateNode(coord,new jsts.operation.relate.EdgeEndBundleStar());};jsts.index.quadtree.Key=function(itemEnv){this.pt=new jsts.geom.Coordinate();this.level=0;this.env=null;this.computeKey(itemEnv);};jsts.index.quadtree.Key.computeQuadLevel=function(env){var dx,dy,dMax,level;dx=env.getWidth();dy=env.getHeight();dMax=dx>dy?dx:dy;level=jsts.index.DoubleBits.exponent(dMax)+1;return level;};jsts.index.quadtree.Key.prototype.getPoint=function(){return this.pt;};jsts.index.quadtree.Key.prototype.getLevel=function(){return this.level;};jsts.index.quadtree.Key.prototype.getEnvelope=function(){return this.env;};jsts.index.quadtree.Key.prototype.getCentre=function(){var x,y;x=(this.env.getMinX()+this.env.getMaxX())/2;y=(this.env.getMinY()+this.env.getMaxY())/2;return new jsts.geom.Coordinate(x,y);};jsts.index.quadtree.Key.prototype.computeKey=function(){if(arguments[0]instanceof jsts.geom.Envelope){this.computeKeyFromEnvelope(arguments[0]);}else{this.computeKeyFromLevel(arguments[0],arguments[1]);}};jsts.index.quadtree.Key.prototype.computeKeyFromEnvelope=function(env){this.level=jsts.index.quadtree.Key.computeQuadLevel(env);this.env=new jsts.geom.Envelope();this.computeKey(this.level,env);while(!this.env.contains(env)){this.level+=1;this.computeKey(this.level,env);}};jsts.index.quadtree.Key.prototype.computeKeyFromLevel=function(level,env){var quadSize=jsts.index.DoubleBits.powerOf2(level);this.pt.x=Math.floor(env.getMinX()/quadSize)*quadSize;this.pt.y=Math.floor(env.getMinY()/quadSize)*quadSize;this.env.init(this.pt.x,this.pt.x+quadSize,this.pt.y,this.pt.y+ +quadSize);};jsts.geom.CoordinateArrays=function(){throw new jsts.error.AbstractMethodInvocationError();};jsts.geom.CoordinateArrays.removeRepeatedPoints=function(coord){var coordList;if(!this.hasRepeatedPoints(coord)){return coord;} +coordList=new jsts.geom.CoordinateList(coord,false);return coordList;};jsts.geom.CoordinateArrays.hasRepeatedPoints=function(coord){var i;for(i=1;i0){minCoord=coordinates[i];}} +return minCoord;};jsts.geom.CoordinateArrays.scroll=function(coordinates,firstCoordinate){var i=jsts.geom.CoordinateArrays.indexOf(firstCoordinate,coordinates);if(i<0) +return;var newCoordinates=coordinates.slice(i).concat(coordinates.slice(0,i));for(i=0;imaxx){minx=p2.x;maxx=p1.x;} +if(this.p.x>=minx&&this.p.x<=maxx){this.isPointOnSegment=true;} +return;} +if(((p1.y>this.p.y)&&(p2.y<=this.p.y))||((p2.y>this.p.y)&&(p1.y<=this.p.y))){var x1=p1.x-this.p.x;var y1=p1.y-this.p.y;var x2=p2.x-this.p.x;var y2=p2.y-this.p.y;var xIntSign=jsts.algorithm.RobustDeterminant.signOfDet2x2(x1,y1,x2,y2);if(xIntSign===0.0){this.isPointOnSegment=true;return;} +if(y20.0){this.crossingCount++;}}};jsts.algorithm.RayCrossingCounter.prototype.isOnSegment=function(){return jsts.geom.isPointOnSegment;};jsts.algorithm.RayCrossingCounter.prototype.getLocation=function(){if(this.isPointOnSegment) +return jsts.geom.Location.BOUNDARY;if((this.crossingCount%2)===1){return jsts.geom.Location.INTERIOR;} +return jsts.geom.Location.EXTERIOR;};jsts.algorithm.RayCrossingCounter.prototype.isPointInPolygon=function(){return this.getLocation()!==jsts.geom.Location.EXTERIOR;};jsts.operation.BoundaryOp=function(geom,bnRule){this.geom=geom;this.geomFact=geom.getFactory();this.bnRule=bnRule||jsts.algorithm.BoundaryNodeRule.MOD2_BOUNDARY_RULE;};jsts.operation.BoundaryOp.prototype.geom=null;jsts.operation.BoundaryOp.prototype.geomFact=null;jsts.operation.BoundaryOp.prototype.bnRule=null;jsts.operation.BoundaryOp.prototype.getBoundary=function(){if(this.geom instanceof jsts.geom.LineString)return this.boundaryLineString(this.geom);if(this.geom instanceof jsts.geom.MultiLineString)return this.boundaryMultiLineString(this.geom);return this.geom.getBoundary();};jsts.operation.BoundaryOp.prototype.getEmptyMultiPoint=function(){return this.geomFact.createMultiPoint(null);};jsts.operation.BoundaryOp.prototype.boundaryMultiLineString=function(mLine){if(this.geom.isEmpty()){return this.getEmptyMultiPoint();} +var bdyPts=this.computeBoundaryCoordinates(mLine);if(bdyPts.length==1){return this.geomFact.createPoint(bdyPts[0]);} +return this.geomFact.createMultiPoint(bdyPts);};jsts.operation.BoundaryOp.prototype.endpoints=null;jsts.operation.BoundaryOp.prototype.computeBoundaryCoordinates=function(mLine){var i,line,endpoint,bdyPts=[];this.endpoints=[];for(i=0;i=1&&de.getDepth(jsts.geomgraph.Position.LEFT)<=0&&!de.isInteriorAreaEdge()){de.setInResult(true);}}};jsts.operation.buffer.BufferSubgraph.prototype.compareTo=function(o){var graph=o;if(this.rightMostCoord.xgraph.rightMostCoord.x){return 1;} +return 0;};(function(){var OverlayOp=jsts.operation.overlay.OverlayOp;var SnapOverlayOp=jsts.operation.overlay.snap.SnapOverlayOp;var SnapIfNeededOverlayOp=function(g1,g2){this.geom=[];this.geom[0]=g1;this.geom[1]=g2;};SnapIfNeededOverlayOp.overlayOp=function(g0,g1,opCode){var op=new SnapIfNeededOverlayOp(g0,g1);return op.getResultGeometry(opCode);} +SnapIfNeededOverlayOp.intersection=function(g0,g1){return overlayOp(g0,g1,OverlayOp.INTERSECTION);} +SnapIfNeededOverlayOp.union=function(g0,g1){return overlayOp(g0,g1,OverlayOp.UNION);} +SnapIfNeededOverlayOp.difference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.DIFFERENCE);} +SnapIfNeededOverlayOp.symDifference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.SYMDIFFERENCE);} +SnapIfNeededOverlayOp.prototype.geom=null;SnapIfNeededOverlayOp.prototype.getResultGeometry=function(opCode){var result=null;var isSuccess=false;var savedException=null;try{result=OverlayOp.overlayOp(this.geom[0],this.geom[1],opCode);var isValid=true;if(isValid) +isSuccess=true;}catch(ex){savedException=ex;} +if(!isSuccess){try{result=SnapOverlayOp.overlayOp(this.geom[0],this.geom[1],opCode);}catch(ex){throw savedException;}} +return result;} +jsts.operation.overlay.snap.SnapIfNeededOverlayOp=SnapIfNeededOverlayOp;})();(function(){var GeometryExtracter=jsts.geom.util.GeometryExtracter;var CascadedPolygonUnion=jsts.operation.union.CascadedPolygonUnion;var PointGeometryUnion=jsts.operation.union.PointGeometryUnion;var OverlayOp=jsts.operation.overlay.OverlayOp;var SnapIfNeededOverlayOp=jsts.operation.overlay.snap.SnapIfNeededOverlayOp;var ArrayList=javascript.util.ArrayList;jsts.operation.union.UnaryUnionOp=function(geoms,geomFact){this.polygons=new ArrayList();this.lines=new ArrayList();this.points=new ArrayList();if(geomFact){this.geomFact=geomFact;} +this.extract(geoms);};jsts.operation.union.UnaryUnionOp.union=function(geoms,geomFact){var op=new jsts.operation.union.UnaryUnionOp(geoms,geomFact);return op.union();};jsts.operation.union.UnaryUnionOp.prototype.polygons=null;jsts.operation.union.UnaryUnionOp.prototype.lines=null;jsts.operation.union.UnaryUnionOp.prototype.points=null;jsts.operation.union.UnaryUnionOp.prototype.geomFact=null;jsts.operation.union.UnaryUnionOp.prototype.extract=function(geoms){if(geoms instanceof ArrayList){for(var i=geoms.iterator();i.hasNext();){var geom=i.next();this.extract(geom);}}else{if(this.geomFact===null){this.geomFact=geoms.getFactory();} +GeometryExtracter.extract(geoms,jsts.geom.Polygon,this.polygons);GeometryExtracter.extract(geoms,jsts.geom.LineString,this.lines);GeometryExtracter.extract(geoms,jsts.geom.Point,this.points);}};jsts.operation.union.UnaryUnionOp.prototype.union=function(){if(this.geomFact===null){return null;} +var unionPoints=null;if(this.points.size()>0){var ptGeom=this.geomFact.buildGeometry(this.points);unionPoints=this.unionNoOpt(ptGeom);} +var unionLines=null;if(this.lines.size()>0){var lineGeom=this.geomFact.buildGeometry(this.lines);unionLines=this.unionNoOpt(lineGeom);} +var unionPolygons=null;if(this.polygons.size()>0){unionPolygons=CascadedPolygonUnion.union(this.polygons);} +var unionLA=this.unionWithNull(unionLines,unionPolygons);var union=null;if(unionPoints===null){union=unionLA;}else if(unionLA===null){union=unionPoints;}else{union=PointGeometryUnion(unionPoints,unionLA);} +if(union===null){return this.geomFact.createGeometryCollection(null);} +return union;};jsts.operation.union.UnaryUnionOp.prototype.unionWithNull=function(g0,g1){if(g0===null&&g1===null){return null;} +if(g1===null){return g0;} +if(g0===null){return g1;} +return g0.union(g1);};jsts.operation.union.UnaryUnionOp.prototype.unionNoOpt=function(g0){var empty=this.geomFact.createPoint(null);return SnapIfNeededOverlayOp.overlayOp(g0,empty,OverlayOp.UNION);};}());jsts.index.kdtree.KdNode=function(){this.left=null;this.right=null;this.count=1;if(arguments.length===2){this.initializeFromCoordinate.apply(this,arguments[0],arguments[1]);}else if(arguments.length===3){this.initializeFromXY.apply(this,arguments[0],arguments[1],arguments[2]);}};jsts.index.kdtree.KdNode.prototype.initializeFromXY=function(x,y,data){this.p=new jsts.geom.Coordinate(x,y);this.data=data;};jsts.index.kdtree.KdNode.prototype.initializeFromCoordinate=function(p,data){this.p=p;this.data=data;};jsts.index.kdtree.KdNode.prototype.getX=function(){return this.p.x;};jsts.index.kdtree.KdNode.prototype.getY=function(){return this.p.y;};jsts.index.kdtree.KdNode.prototype.getCoordinate=function(){return this.p;};jsts.index.kdtree.KdNode.prototype.getData=function(){return this.data;};jsts.index.kdtree.KdNode.prototype.getLeft=function(){return this.left;};jsts.index.kdtree.KdNode.prototype.getRight=function(){return this.right;};jsts.index.kdtree.KdNode.prototype.increment=function(){this.count+=1;};jsts.index.kdtree.KdNode.prototype.getCount=function(){return this.count;};jsts.index.kdtree.KdNode.prototype.isRepeated=function(){return count>1;};jsts.index.kdtree.KdNode.prototype.setLeft=function(left){this.left=left;};jsts.index.kdtree.KdNode.prototype.setRight=function(right){this.right=right;};(function(){jsts.geom.MultiLineString=function(lineStrings,factory){this.factory=factory;if(arguments[0]instanceof Array){var array=arguments[0];for(var i=0;i0){loc=jsts.geomgraph.GeometryGraph.determineBoundary(boundaryNodeRule,boundaryCount);} +this.label.setLocation(geomIndex,loc);};jsts.operation.relate.EdgeEndBundle.prototype.computeLabelSides=function(geomIndex){this.computeLabelSide(geomIndex,jsts.geomgraph.Position.LEFT);this.computeLabelSide(geomIndex,jsts.geomgraph.Position.RIGHT);};jsts.operation.relate.EdgeEndBundle.prototype.computeLabelSide=function(geomIndex,side){for(var i=0;i=0||actualDimensionValue===Dimension.TRUE)){return true;} +if(requiredDimensionSymbol==='F'&&actualDimensionValue===Dimension.FALSE){return true;} +if(requiredDimensionSymbol==='0'&&actualDimensionValue===Dimension.P){return true;} +if(requiredDimensionSymbol==='1'&&actualDimensionValue===Dimension.L){return true;} +if(requiredDimensionSymbol==='2'&&actualDimensionValue===Dimension.A){return true;} +return false;};jsts.geom.IntersectionMatrix.matches2=function(actualDimensionSymbols,requiredDimensionSymbols){var m=new jsts.geom.IntersectionMatrix(actualDimensionSymbols);return m.matches(requiredDimensionSymbols);};jsts.geom.IntersectionMatrix.prototype.set=function(row,column,dimensionValue){if(typeof row==='string'){this.set2(row);return;} +this.matrix[row][column]=dimensionValue;};jsts.geom.IntersectionMatrix.prototype.set2=function(dimensionSymbols){for(var i=0;i=0&&column>=0){this.setAtLeast(row,column,minimumDimensionValue);}};jsts.geom.IntersectionMatrix.prototype.setAtLeast2=function(minimumDimensionSymbols){var i;for(i=0;idimensionOfGeometryB){return this.isTouches(dimensionOfGeometryB,dimensionOfGeometryA);} +if((dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.A)||(dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.L)||(dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.A)||(dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.A)||(dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.L)){return this.matrix[Location.INTERIOR][Location.INTERIOR]===Dimension.FALSE&&(jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],'T')||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],'T')||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],'T'));} +return false;};jsts.geom.IntersectionMatrix.prototype.isCrosses=function(dimensionOfGeometryA,dimensionOfGeometryB){if((dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.L)||(dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.A)||(dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.A)){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],'T')&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],'T');} +if((dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.P)||(dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.P)||(dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.L)){return jsts.geom.IntersectionMatrix.matches(matrix[Location.INTERIOR][Location.INTERIOR],'T')&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],'T');} +if(dimensionOfGeometryA===Dimension.L&&dimensionOfGeometryB===Dimension.L){return this.matrix[Location.INTERIOR][Location.INTERIOR]===0;} +return false;};jsts.geom.IntersectionMatrix.prototype.isWithin=function(){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],'T')&&this.matrix[Location.INTERIOR][Location.EXTERIOR]==Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]==Dimension.FALSE;};jsts.geom.IntersectionMatrix.prototype.isContains=function(){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],'T')&&this.matrix[Location.EXTERIOR][Location.INTERIOR]==Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]==Dimension.FALSE;};jsts.geom.IntersectionMatrix.prototype.isCovers=function(){var hasPointInCommon=jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],'T')||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],'T')||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],'T')||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],'T');return hasPointInCommon&&this.matrix[Location.EXTERIOR][Location.INTERIOR]==Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]==Dimension.FALSE;};jsts.geom.IntersectionMatrix.prototype.isCoveredBy=function(){var hasPointInCommon=jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],'T')||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],'T')||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],'T')||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],'T');return hasPointInCommon&&this.matrix[Location.INTERIOR][Location.EXTERIOR]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]===Dimension.FALSE;};jsts.geom.IntersectionMatrix.prototype.isEquals=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA!==dimensionOfGeometryB){return false;} +return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],'T')&&this.matrix[Location.EXTERIOR][Location.INTERIOR]===Dimension.FALSE&&this.matrix[Location.INTERIOR][Location.EXTERIOR]===Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]===Dimension.FALSE;};jsts.geom.IntersectionMatrix.prototype.isOverlaps=function(dimensionOfGeometryA,dimensionOfGeometryB){if((dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB===Dimension.P)||(dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB===Dimension.A)){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],'T')&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],'T')&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],'T');} +if(dimensionOfGeometryA===Dimension.L&&dimensionOfGeometryB===Dimension.L){return this.matrix[Location.INTERIOR][Location.INTERIOR]==1&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],'T')&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],'T');} +return false;};jsts.geom.IntersectionMatrix.prototype.matches=function(requiredDimensionSymbols){if(requiredDimensionSymbols.length!=9){throw new jsts.error.IllegalArgumentException('Should be length 9: '+ +requiredDimensionSymbols);} +for(var ai=0;ai<3;ai++){for(var bi=0;bi<3;bi++){if(!jsts.geom.IntersectionMatrix.matches(this.matrix[ai][bi],requiredDimensionSymbols.charAt(3*ai+bi))){return false;}}} +return true;};jsts.geom.IntersectionMatrix.prototype.transpose=function(){var temp=matrix[1][0];this.matrix[1][0]=this.matrix[0][1];this.matrix[0][1]=temp;temp=this.matrix[2][0];this.matrix[2][0]=this.matrix[0][2];this.matrix[0][2]=temp;temp=this.matrix[2][1];this.matrix[2][1]=this.matrix[1][2];this.matrix[1][2]=temp;return this;};jsts.geom.IntersectionMatrix.prototype.toString=function(){var ai,bi,buf='';for(ai=0;ai<3;ai++){for(bi=0;bi<3;bi++){buf+=Dimension.toDimensionSymbol(this.matrix[ai][bi]);}} +return buf;};})();jsts.index.ArrayListVisitor=function(){this.items=[];};jsts.index.ArrayListVisitor.prototype.visitItem=function(item){this.items.push(item);};jsts.index.ArrayListVisitor.prototype.getItems=function(){return this.items;};jsts.io.WKTWriter=function(){};jsts.io.WKTWriter.prototype.write=function(geometry){if(geometry instanceof jsts.geom.Point){geometry=geometry.coordinate;} +var format=new OpenLayers.Format.WKT();var feature=new OpenLayers.Feature.Vector(geometry);var wkt=format.write(feature);return wkt;};jsts.geom.util.PointExtracter=function(pts){this.pts=pts;};jsts.geom.util.PointExtracter.prototype=new jsts.geom.GeometryFilter();jsts.geom.util.PointExtracter.prototype.pts=null;jsts.geom.util.PointExtracter.getPoints=function(geom,list){if(list===undefined){list=[];} +if(geom instanceof jsts.geom.Point){list.push(geom);}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){geom.apply(new jsts.geom.util.PointExtracter(list));} +return list;};jsts.geom.util.PointExtracter.prototype.filter=function(geom){if(geom instanceof jsts.geom.Point) +this.pts.push(geom);};jsts.triangulate.quadedge.QuadEdgeSubdivision=function(env,tolerance){this.tolerance=tolerance;this.edgeCoincidenceTolerance=tolerance/jsts.triangulate.quadedge.QuadEdgeSubdivision.EDGE_COINCIDENCE_TOL_FACTOR;this.visitedKey=0;this.quadEdges=[];this.startingEdge;this.tolerance;this.edgeCoincidenceTolerance;this.frameEnv;this.locator=null;this.seg=new jsts.geom.LineSegment();this.triEdges=new Array(3);this.frameVertex=new Array(3);this.createFrame(env);this.startingEdge=this.initSubdiv();this.locator=new jsts.triangulate.quadedge.LastFoundQuadEdgeLocator(this);};jsts.triangulate.quadedge.QuadEdgeSubdivision.EDGE_COINCIDENCE_TOL_FACTOR=1000;jsts.triangulate.quadedge.QuadEdgeSubdivision.getTriangleEdges=function(startQE,triEdge){triEdge[0]=startQE;triEdge[1]=triEdge[0].lNext();triEdge[2]=triEdge[1].lNext();if(triEdge[2].lNext()!=triEdge[0]){throw new jsts.IllegalArgumentError('Edges do not form a triangle');}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.createFrame=function(env){var deltaX,deltaY,offset;deltaX=env.getWidth();deltaY=env.getHeight();offset=0.0;if(deltaX>deltaY){offset=deltaX*10.0;}else{offset=deltaY*10.0;} +this.frameVertex[0]=new jsts.triangulate.quadedge.Vertex((env.getMaxX()+env.getMinX())/2.0,env.getMaxY() ++offset);this.frameVertex[1]=new jsts.triangulate.quadedge.Vertex(env.getMinX()-offset,env.getMinY()-offset);this.frameVertex[2]=new jsts.triangulate.quadedge.Vertex(env.getMaxX()+offset,env.getMinY()-offset);this.frameEnv=new jsts.geom.Envelope(this.frameVertex[0].getCoordinate(),this.frameVertex[1].getCoordinate());this.frameEnv.expandToInclude(this.frameVertex[2].getCoordinate());};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.initSubdiv=function(){var ea,eb,ec;ea=this.makeEdge(this.frameVertex[0],this.frameVertex[1]);eb=this.makeEdge(this.frameVertex[1],this.frameVertex[2]);jsts.triangulate.quadedge.QuadEdge.splice(ea.sym(),eb);ec=this.makeEdge(this.frameVertex[2],this.frameVertex[0]);jsts.triangulate.quadedge.QuadEdge.splice(eb.sym(),ec);jsts.triangulate.quadedge.QuadEdge.splice(ec.sym(),ea);return ea;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTolerance=function(){return this.tolerance;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEnvelope=function(){return new jsts.geom.Envelope(this.frameEnv);};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEdges=function(){if(arguments.length>0){return this.getEdgesByFactory(arguments[0]);}else{return this.quadEdges;}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.setLocator=function(locator){this.locator=locator;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.makeEdge=function(o,d){var q=jsts.triangulate.quadedge.QuadEdge.makeEdge(o,d);this.quadEdges.push(q);return q;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.connect=function(a,b){var q=jsts.triangulate.quadedge.QuadEdge.connect(a,b);this.quadEdges.push(q);return q;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.delete_jsts=function(e){jsts.triangulate.quadedge.QuadEdge.splice(e,e.oPrev());jsts.triangulate.quadedge.QuadEdge.splice(e.sym(),e.sym().oPrev());var eSym,eRot,eRotSym;e.eSym=e.sym();eRot=e.rot;eRotSym=e.rot.sym();var idx=this.quadEdges.indexOf(e);if(idx!==-1){this.quadEdges.splice(idx,1);} +idx=this.quadEdges.indexOf(eSym);if(idx!==-1){this.quadEdges.splice(idx,1);} +idx=this.quadEdges.indexOf(eRot);if(idx!==-1){this.quadEdges.splice(idx,1);} +idx=this.quadEdges.indexOf(eRotSym);if(idx!==-1){this.quadEdges.splice(idx,1);} +e.delete_jsts();eSym.delete_jsts();eRot.delete_jsts();eRotSym.delete_jsts();};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateFromEdge=function(v,startEdge){var iter=0,maxIter=this.quadEdges.length,e;e=startEdge;while(true){iter++;if(iter>maxIter){throw new jsts.error.LocateFailureError(e.toLineSegment());} +if((v.equals(e.orig()))||(v.equals(e.dest()))){break;}else if(v.rightOf(e)){e=e.sym();}else if(!v.rightOf(e.oNext())){e=e.oNext();}else if(!v.rightOf(e.dPrev())){e=e.dPrev();}else{break;}} +return e;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locate=function(){if(arguments.length===1){if(arguments[0]instanceof jsts.triangulate.quadedge.Vertex){return this.locateByVertex(arguments[0]);}else{return this.locateByCoordinate(arguments[0]);}}else{return this.locateByCoordinates(arguments[0],arguments[1]);}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByVertex=function(v){return this.locator.locate(v);};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByCoordinate=function(p){return this.locator.locate(new jsts.triangulate.quadedge.Vertex(p));};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByCoordinates=function(p0,p1){var e,base,locEdge;var e=this.locator.locate(new jsts.triangulate.quadedge.Vertex(p0));if(e===null){return null;} +base=e;if(e.dest().getCoordinate().equals2D(p0)){base=e.sym();} +locEdge=base;do{if(locEdge.dest().getCoordinate().equals2D(p1)){return locEdge;} +locEdge=locEdge.oNext();}while(locEdge!=base);return null;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.insertSite=function(v){var e,base,startEdge;e=this.locate(v);if((v.equals(e.orig(),this.tolerance))||(v.equals(e.dest(),this.tolerance))){return e;} +base=this.makeEdge(e.orig(),v);jsts.triangulate.quadedge.QuadEdge.splice(base,e);startEdge=base;do{base=this.connect(e,base.sym());e=base.oPrev();}while(e.lNext()!=startEdge);return startEdge;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameEdge=function(e){if(this.isFrameVertex(e.orig())||this.isFrameVertex(e.dest())){return true;} +return false;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameBorderEdge=function(e){var leftTri,rightTri,vLeftTriOther,vRightTriOther;leftTri=new Array(3);this.getTriangleEdges(e,leftTri);rightTri=new Array(3);this.getTriangleEdges(e.sym(),rightTri);vLeftTriOther=e.lNext().dest();if(this.isFrameVertex(vLeftTriOther)){return true;} +vRightTriOther=e.sym().lNext().dest();if(this.isFrameVertex(vRightTriOther)){return true;} +return false;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameVertex=function(v){if(v.equals(this.frameVertex[0])){return true;} +if(v.equals(this.frameVertex[1])){return true;} +if(v.equals(this.frameVertex[2])){return true;} +return false;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isOnEdge=function(e,p){this.seg.setCoordinates(e.orig().getCoordinate(),e.dest().getCoordinate());var dist=this.seg.distance(p);return dist0){edge=edgeStack.pop();if(visitedEdges.indexOf(edge)===-1){priQE=edge.getPrimary();if(includeFrame||!this.isFrameEdge(priQE)){edges.push(priQE);} +edgeStack.push(edge.oNext());edgeStack.push(edge.sym().oNext());visitedEdges.push(edge);visitedEdges.push(edge.sym());}} +return edges;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.visitTriangles=function(triVisitor,includeFrame){this.visitedKey++;var edgeStack,visitedEdges,edge,triEdges;edgeStack=[];edgeStack.push(this.startingEdge);visitedEdges=[];while(edgeStack.length>0){edge=edgeStack.pop();if(visitedEdges.indexOf(edge)===-1){triEdges=this.fetchTriangleToVisit(edge,edgeStack,includeFrame,visitedEdges);if(triEdges!==null) +triVisitor.visit(triEdges);}}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.fetchTriangleToVisit=function(edge,edgeStack,includeFrame,visitedEdges){var curr,edgeCount,isFrame,sym;curr=edge;edgeCount=0;isFrame=false;do{this.triEdges[edgeCount]=curr;if(this.isFrameEdge(curr)){isFrame=true;} +sym=curr.sym();if(visitedEdges.indexOf(sym)===-1){edgeStack.push(sym);} +visitedEdges.push(curr);edgeCount++;curr=curr.lNext();}while(curr!==edge);if(isFrame&&!includeFrame){return null;} +return this.triEdges;};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleEdges=function(includeFrame){var visitor=new jsts.triangulate.quadedge.TriangleEdgesListVisitor();this.visitTriangles(visitor,includeFrame);return visitor.getTriangleEdges();};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleVertices=function(includeFrame){var visitor=new TriangleVertexListVisitor();this.visitTriangles(visitor,includeFrame);return visitor.getTriangleVertices();};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleCoordinates=function(includeFrame){var visitor=new jsts.triangulate.quadedge.TriangleCoordinatesVisitor();this.visitTriangles(visitor,includeFrame);return visitor.getTriangles();};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEdgesByFactory=function(geomFact){var quadEdges,edges,i,qe,coords;quadEdges=this.getPrimaryEdges(false);edges=new Array(quadEdges.length);i=0,il=quadEdges.length;for(i;i0){this.coordList.closeRing();pts=this.coordList.toArray();if(pts.length!==4){return;} +this.triCoords.push(pts);}};jsts.triangulate.quadedge.TriangleCoordinatesVisitor.prototype.getTriangles=function(){return this.triCoords;};jsts.index.kdtree.KdTree=function(tolerance){var tol=0.0;if(tolerance!==undefined){tol=tolerance;} +this.root=null;this.last=null;this.numberOfNodes=0;this.tolerance=tol;};jsts.index.kdtree.KdTree.prototype.insert=function(){if(arguments.length===1){return this.insertCoordinate.apply(this,arguments[0]);}else{return this.insertWithData.apply(this,arguments[0],arguments[1]);}};jsts.index.kdtree.KdTree.prototype.insertCoordinate=function(p){return this.insertWithData(p,null);};jsts.index.kdtree.KdTree.prototype.insertWithData=function(p,data){if(this.root===null){this.root=new jsts.index.kdtree.KdNode(p,data);return this.root;} +var currentNode=this.root,leafNode=this.root,isOddLevel=true,isLessThan=true;while(currentNode!==last){if(isOddLevel){isLessThan=p.xmaxLen){maxLen=lenBC;} +if(lenCA>maxLen){maxLen=lenCA;} +return maxLen;};jsts.geom.Triangle.angleBisector=function(a,b,c){var len0,len2,frac,dx,dy,splitPt;len0=b.distance(a);len2=b.distance(c);frac=len0/(len0+len2);dx=c.x-a.x;dy=c.y-a.y;splitPt=new jsts.geom.Coordinate(a.x+frac*dx,a.y+frac*dy);return splitPt;};jsts.geom.Triangle.area=function(a,b,c){return Math.abs(((c.x-a.x)*(b.y-a.y)-(b.x-a.x)*(c.y-a.y))/2.0);};jsts.geom.Triangle.signedArea=function(a,b,c){return((c.x-a.x)*(b.y-a.y)-(b.x-a.x)*(c.y-a.y))/2.0;};jsts.geom.Triangle.prototype.initialize=function(p0,p1,p2){this.p0=p0;this.p1=p1;this.p2=p2;};jsts.geom.Triangle.prototype.inCentre=function(){return jsts.geom.Triangle.inCentre(this.p0,this.p1,this.p2);};jsts.algorithm.CentroidArea=function(){this.basePt=null;this.triangleCent3=new jsts.geom.Coordinate();this.centSum=new jsts.geom.Coordinate();this.cg3=new jsts.geom.Coordinate();};jsts.algorithm.CentroidArea.prototype.basePt=null;jsts.algorithm.CentroidArea.prototype.triangleCent3=null;jsts.algorithm.CentroidArea.prototype.areasum2=0;jsts.algorithm.CentroidArea.prototype.cg3=null;jsts.algorithm.CentroidArea.prototype.centSum=null;jsts.algorithm.CentroidArea.prototype.totalLength=0.0;jsts.algorithm.CentroidArea.prototype.add=function(geom){if(geom instanceof jsts.geom.Polygon){var poly=geom;this.setBasePoint(poly.getExteriorRing().getCoordinateN(0));this.add3(poly);}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPolygon){var gc=geom;for(var i=0;i0.0){cent.x=this.cg3.x/3/this.areasum2;cent.y=this.cg3.y/3/this.areasum2;}else{cent.x=this.centSum.x/this.totalLength;cent.y=this.centSum.y/this.totalLength;} +return cent;};jsts.algorithm.CentroidArea.prototype.setBasePoint=function(basePt){if(this.basePt==null) +this.basePt=basePt;};jsts.algorithm.CentroidArea.prototype.add3=function(poly){this.addShell(poly.getExteriorRing().getCoordinates());for(var i=0;i0){avg.x/=n;avg.y/=n;} +return avg;};jsts.algorithm.CentralEndpointIntersector.prototype.findNearestPoint=function(p,pts){var minDist=Number.MAX_VALUE;var i,result=null,dist;for(i=0;i=0;i--){this.addPt(pt[i]);}}};jsts.operation.buffer.OffsetSegmentString.prototype.isRedundant=function(pt){if(this.ptList.length<1) +return false;var lastPt=this.ptList[this.ptList.length-1];var ptDist=pt.distance(lastPt);if(ptDist=2) +last2Pt=this.ptList[this.ptList.length-2];if(startPt.equals(lastPt)) +return;this.ptList.push(startPt);};jsts.operation.buffer.OffsetSegmentString.prototype.reverse=function(){};jsts.operation.buffer.OffsetSegmentString.prototype.getCoordinates=function(){return this.ptList;};(function(){var ArrayList=javascript.util.ArrayList;var TreeSet=javascript.util.TreeSet;var CoordinateFilter=jsts.geom.CoordinateFilter;jsts.util.UniqueCoordinateArrayFilter=function(){this.treeSet=new TreeSet();this.list=new ArrayList();};jsts.util.UniqueCoordinateArrayFilter.prototype=new CoordinateFilter();jsts.util.UniqueCoordinateArrayFilter.prototype.treeSet=null;jsts.util.UniqueCoordinateArrayFilter.prototype.list=null;jsts.util.UniqueCoordinateArrayFilter.prototype.getCoordinates=function(){return this.list.toArray();};jsts.util.UniqueCoordinateArrayFilter.prototype.filter=function(coord){if(!this.treeSet.contains(coord)){this.list.add(coord);this.treeSet.add(coord);}};})();(function(){var CGAlgorithms=jsts.algorithm.CGAlgorithms;var UniqueCoordinateArrayFilter=jsts.util.UniqueCoordinateArrayFilter;var Assert=jsts.util.Assert;var Stack=javascript.util.Stack;var ArrayList=javascript.util.ArrayList;var Arrays=javascript.util.Arrays;var RadialComparator=function(origin){this.origin=origin;};RadialComparator.prototype.origin=null;RadialComparator.prototype.compare=function(o1,o2){var p1=o1;var p2=o2;return RadialComparator.polarCompare(this.origin,p1,p2);};RadialComparator.polarCompare=function(o,p,q){var dxp=p.x-o.x;var dyp=p.y-o.y;var dxq=q.x-o.x;var dyq=q.y-o.y;var orient=CGAlgorithms.computeOrientation(o,p,q);if(orient==CGAlgorithms.COUNTERCLOCKWISE) +return 1;if(orient==CGAlgorithms.CLOCKWISE) +return-1;var op=dxp*dxp+dyp*dyp;var oq=dxq*dxq+dyq*dyq;if(opoq){return 1;} +return 0;};jsts.algorithm.ConvexHull=function(){if(arguments.length===1){var geometry=arguments[0];this.inputPts=jsts.algorithm.ConvexHull.extractCoordinates(geometry);this.geomFactory=geometry.getFactory();}else{this.pts=arguments[0];this.geomFactory=arguments[1];}};jsts.algorithm.ConvexHull.prototype.geomFactory=null;jsts.algorithm.ConvexHull.prototype.inputPts=null;jsts.algorithm.ConvexHull.extractCoordinates=function(geom){var filter=new UniqueCoordinateArrayFilter();geom.apply(filter);return filter.getCoordinates();};jsts.algorithm.ConvexHull.prototype.getConvexHull=function(){if(this.inputPts.length==0){return this.geomFactory.createGeometryCollection(null);} +if(this.inputPts.length==1){return this.geomFactory.createPoint(this.inputPts[0]);} +if(this.inputPts.length==2){return this.geomFactory.createLineString(this.inputPts);} +var reducedPts=this.inputPts;if(this.inputPts.length>50){reducedPts=this.reduce(inputPts);} +var sortedPts=this.preSort(reducedPts);var cHS=this.grahamScan(sortedPts);var cH=cHS.toArray();return this.lineOrPolygon(cH);};jsts.algorithm.ConvexHull.prototype.reduce=function(inputPts){var polyPts=this.computeOctRing(inputPts);if(polyPts==null) +return this.inputPts;var reducedSet=new TreeSet();for(var i=0;i0){p=ps.pop();} +p=ps.push(p);p=ps.push(c[i]);} +p=ps.push(c[0]);return ps;};jsts.algorithm.ConvexHull.prototype.isBetween=function(c1,c2,c3){if(CGAlgorithms.computeOrientation(c1,c2,c3)!==0){return false;} +if(c1.x!=c3.x){if(c1.x<=c2.x&&c2.x<=c3.x){return true;} +if(c3.x<=c2.x&&c2.x<=c1.x){return true;}} +if(c1.y!=c3.y){if(c1.y<=c2.y&&c2.y<=c3.y){return true;} +if(c3.y<=c2.y&&c2.y<=c1.y){return true;}} +return false;};jsts.algorithm.ConvexHull.prototype.computeOctRing=function(inputPts){var octPts=this.computeOctPts(inputPts);var coordList=new CoordinateList();coordList.add(octPts,false);if(coordList.size()<3){return null;} +coordList.closeRing();return coordList.toCoordinateArray();};jsts.algorithm.ConvexHull.prototype.computeOctPts=function(inputPts){var pts=[];for(var j=0;jpts[2].y){pts[2]=inputPts[i];} +if(inputPts[i].x+inputPts[i].y>pts[3].x+pts[3].y){pts[3]=inputPts[i];} +if(inputPts[i].x>pts[4].x){pts[4]=inputPts[i];} +if(inputPts[i].x-inputPts[i].y>pts[5].x-pts[5].y){pts[5]=inputPts[i];} +if(inputPts[i].y=2,'found LineString with single point');this.insertBoundaryPoint(this.argIndex,coord[0]);this.insertBoundaryPoint(this.argIndex,coord[coord.length-1]);};jsts.geomgraph.GeometryGraph.prototype.addPolygonRing=function(lr,cwLeft,cwRight){if(lr.isEmpty()) +return;var coord=jsts.geom.CoordinateArrays.removeRepeatedPoints(lr.getCoordinates());if(coord.length<4){this.hasTooFewPoints=true;this.invalidPoint=coord[0];return;} +var left=cwLeft;var right=cwRight;if(jsts.algorithm.CGAlgorithms.isCCW(coord)){left=cwRight;right=cwLeft;} +var e=new jsts.geomgraph.Edge(coord,new jsts.geomgraph.Label(this.argIndex,Location.BOUNDARY,left,right));this.lineEdgeMap.put(lr,e);this.insertEdge(e);this.insertPoint(this.argIndex,coord[0],Location.BOUNDARY);};jsts.geomgraph.GeometryGraph.prototype.addPolygon=function(p){this.addPolygonRing(p.getExteriorRing(),Location.EXTERIOR,Location.INTERIOR);for(var i=0;i